OTTAWA - Just as the Bushmaster AR-15 rifle has become a grim household name in the U.S. after the Sandy Hook massacre, a pair of semi-automatic firearms evoke similar memories — and debate — in Canada.

In the 1989 massacre of 14 women at the Ecole Polytechnique in Montreal, Marc Lepine used a Ruger Mini-14 rifle, at the time equipped with a substantial magazine.

And in 2006, Kimveer Gill used a Beretta Cx4 Storm to shoot 72 rounds at Montreal's Dawson College, injuring 16 and killing student Anastasia DeSousa.

Neither the Ruger Mini-14 nor the Beretta Cx4 Storm are prohibited in Canada, despite the outcry from victims and their families, the occasional political grumble, and a pointed coroner's report in Montreal.

The Ruger Mini-14 is also not restricted, and since the death of the long-gun registry last spring does not need to be registered outside of Quebec.

On the flip side, semi-automatic rifles such as the Ruger Mini-14 are widely used by Canadian hunters and in rural areas. Semi-automatic weapons can fire off rounds in quick succession without reloading, but unlike an automatic weapon, the trigger mechanism must be re-engaged each time.

"Firearms owners would say it's a matter of freedom. If we're going to restrict everything that has any possibility to do us harm, then the government's going to be pretty busy," said Alan Voth, a firearms forensics expert and retired veteran of the RCMP.

"It's not the gun, it's the person. Why would we want to go around chasing our tails, trying to chase something that is not the problem?"

Semi-automatics were banned in Australia in the wake of a 1996 mass murder in Tasmania. The United Kingdom has more stringent restrictions on semi-automatics than Canada, in the wake of its own tragedies.

"Australia is a safer country as a result of what was done in 1996," former prime minister John Howard wrote last August.

Prime Minister Stephen Harper defended Canada's gun control system in an interview with Quebec's TVA network broadcast Tuesday.

"First, the most important thing to remember is that Canada has a gun control system that is much more strong and strict than the Americans," Harper said.

"We will not change the basis of this system. Actually, we have reinforced certain parts. We abandoned the long-gun registry because it was veyr costly and there we didn't see any benefits, but we are keeping a licensing system for owners, a registration system for handguns and (restricted) firearms, and we will keep this system that works."

But some critics say the system has not screened out what are essentially combat-style weapons.

In the case of the Ruger Mini-14, dubbed the "poor man's assault rifle" by opponents, Lepine used 30-round magazines that are now banned in Canada. Today, the largest magazine allowed holds five rounds.

The Ruger Mini-14 was one of the weapons legally obtained and used by Anders Breivik to kill 77 in Norway last year.

Former Liberal justice minister Irwin Cotler suggested in a 2005 letter that he'd like to ban the Ruger Mini-14, but later said it was a "mistake" following opposition from Canadian gun owners.

The Canadian Association of Police Boards passed a resolution at its conference earlier this year to reclassify certain firearms, including the Mini-14, as restricted.

The Beretta CX4 Storm used in the Dawson shooting is a less powerful weapon, called a semi-automatic carbine, with a trigger that resembles one on a pistol. It is more compact than the Ruger, and the cartridge reloads behind the trigger.

Montreal coroner Jacques Ramsay said in his 2008 report on the shooting that semi-automatics such as the Storm should not be available to the public and should be prohibited outright. Gill was able to obtain one as a gun-club member.

"It's a lighter rifle, it's easier to manoeuvre, but it is still very precise," Ramsay said at the time.

Former public safety minister Stockwell Day mused in the days following the Dawson College shooting about restricting firearms such as the Storm, but that did not happen. The Ottawa Citizen reported 46 new registrations for that model of gun in the month after the shooting, compared with just 16 the month before.

Heidi Rathjen, one of Canada's foremost gun-control advocates, says she and others have not called for a ban on all semi-automatics — just some of them.

She says the federal government has not reviewed or updated its list of restricted or prohibited firearms since 1996, and many out on the market are basically assault weapons masquerading as hunting gear.

"Ban military assault weapons, ban weapons designed to kill people in combat situations for civilian use," said Rathjen, spokesperson for Poly Se Souvient.

"They haven't done that. In fact, they've gone in the opposite direction by ignoring new assault weapons coming on the market and allowing many of them to stay even unrestricted so they're not even registered anymore outside of Quebec."

But Voth says there really is no substantial difference between the Ruger Mini-14, and other semi-automatics that are used frequently by hunters.

Even the Bushmaster AR-15, restricted in Canada to gun club enthusiasts with tight licensing requirements, only looks more menacing than other weapons that are unrestricted, he says.

"The ability to do a lot of damage with a firearm exists even with something as archaic as the Old West double-barrelled shotgun, which is limited to two shots," said Voth.

"It's absolutely unbelievable how fast a skilled operator can shoot and load something like that and the number of shots they can fire in a limited amount of time. The difference between that and a semi-automatic for the purposes of mass murder is inconsequential."

The RCMP did not respond to a series of questions about restrictions on firearms.

Harper said during the interview with TVA that he was greatly affected by what he saw on the news out of Newtown, Conn.

"It's very sad. As a father, it's very difficult to watch these images of children who were killed," said Harper.

"Over the weekend, in the end, I stopped watching. It's almost impossible to imagine how someone could do something like that to children. It's a great tragedy, and we're using the opportunity to remind our children of our love."

Earlier on HuffPost:

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  • Connecticut State Police Release Sandy Hook Report

    NEWTOWN, CT - UNSPECIFED DATE: In this handout crime scene evidence photo provided by the Connecticut State Police, shows the Newtown Tehcnology Team ID of Adam Lanza in the bathroom at the suspect's house on Yogananda St. following the December 14, 2012 shooting rampage at Sandy Hook Elementary School, taken on an unspecified date in Newtown, Connecticut . A report was released November 25, 2013 by Connecticut State Attorney Stephen Sedensky III summarizing the Newtown school shooting that left 20 children and six women dead inside Sandy Hook Elementary School. According to the report, a motive behind the shooting by gunman Adam Lanza is still unknown. (Photo by Connecticut State Police via Getty Images)

  • Connecticut State Police Release Sandy Hook Report

    NEWTOWN, CT - UNSPECIFED DATE: In this handout crime scene evidence photo provided by the Connecticut State Police, shows ammunition infrot of a gun safe in the south east bedroom (shooters room) at the suspect's house on Yogananda St. following the December 14, 2012 shooting rampage at Sandy Hook Elementary School, taken on an unspecified date in Newtown, Connecticut . A report was released November 25, 2013 by Connecticut State Attorney Stephen Sedensky III summarizing the Newtown school shooting that left 20 children and six women dead inside Sandy Hook Elementary School. According to the report, a motive behind the shooting by gunman Adam Lanza is still unknown. (Photo by Connecticut State Police via Getty Images)

  • Connecticut State Police Release Sandy Hook Report

    NEWTOWN, CT - UNSPECIFED DATE: In this handout crime scene evidence photo provided by the Connecticut State Police, shows a Bushmaster rifle in Room 10 at Sandy Hook Elementary School following the December 14, 2012 shooting rampage, taken on an unspecified date in Newtown, Connecticut . A report was released November 25, 2013 by Connecticut State Attorney Stephen Sedensky III summarizing the Newtown school shooting that left 20 children and six women dead inside Sandy Hook Elementary School. According to the report, a motive behind the shooting by gunman Adam Lanza is still unknown. (Photo by Connecticut State Police via Getty Images)

  • Connecticut State Police Release Sandy Hook Report

    NEWTOWN, CT - UNSPECIFED DATE: In this handout crime scene evidence photo provided by the Connecticut State Police, shows firearms and ammunition found on or in close proximity to shooters body at Sandy Hook Elementary School following the December 14, 2012 shooting rampage, taken on an unspecified date in Newtown, Connecticut . A report was released November 25, 2013 by Connecticut State Attorney Stephen Sedensky III summarizing the Newtown school shooting that left 20 children and six women dead inside Sandy Hook Elementary School. According to the report, a motive behind the shooting by gunman Adam Lanza is still unknown. (Photo by Connecticut State Police via Getty Images)

  • Pro Gun Control Group Hold Memorial On Anniversary Of Sandy Hook School Shooting

    CHICAGO, IL - DECEMBER 14: Shundra Robinson holds a picture of her son Deno Wooldridge, 18, while speaking at a gathering of gun violence victims and gun control advocates at Cornell Square Park on the anniversary of the Sandy Hook Elementary School shooting December 14, 2013 in Chicago, Illinois. Thirteen people, including a three-year-old boy, were wounded when gunmen opened fire on a crowd gathered at the basketball courts in Cornell Square Park in September. Twenty children and 6 adults were killed when a gunman opened fire at Sandy Hook School. Wooldridge was shot and killed while standing on his grandmother's porch on October 18, 2010. More than 400 people have been murdered in Chicago so far this year, most by gunfire. (Photo by Scott Olson/Getty Images)

  • Second Report On Sandy Hook Shootings Released

    NEWTOWN, CT - UNSPECIFED DATE: In this handout crime scene evidence photo provided by the Connecticut State Police, shows a rifle in the master bedroom in the suspect's house on Yogananda St. following the December 14, 2012 shooting rampage at Sandy Hook Elementary School, taken on an unspecified date in Newtown, Connecticut. A second report was released December 27, 2013 by Connecticut State Attorney Stephen Sedensky III gave more details of the the Newtown school shooting by Adam Lanza that left 20 children and six women educators dead inside Sandy Hook Elementary School after killing his mother at their home. (Photo by Connecticut State Police via Getty Images)

  • Second Report On Sandy Hook Shootings Released

    NEWTOWN, CT - UNSPECIFED DATE: In this handout crime scene evidence photo provided by the Connecticut State Police, shows a Glock 20, 10mm found near the shooter in Room 10 at Sandy Hook Elementary School following the December 14, 2012 shooting rampage, taken on an unspecified date in Newtown, Connecticut. A second report was released December 27, 2013 by Connecticut State Attorney Stephen Sedensky III gave more details of the the Newtown school shooting by Adam Lanza that left 20 children and six women educators dead inside Sandy Hook Elementary School after killing his mother at their home. (Photo by Connecticut State Police via Getty Images)

  • Second Report On Sandy Hook Shootings Released

    NEWTOWN, CT - UNSPECIFED DATE: In this handout crime scene evidence photo provided by the Connecticut State Police, shows firearms and ammunition found on or in close proximity to shooters body at Sandy Hook Elementary School following the December 14, 2012 shooting rampage, taken on an unspecified date in Newtown, Connecticut. A second report was released December 27, 2013 by Connecticut State Attorney Stephen Sedensky III gave more details of the the Newtown school shooting by Adam Lanza that left 20 children and six women educators dead inside Sandy Hook Elementary School after killing his mother at their home. (Photo by Connecticut State Police via Getty Images)

  • Twenty-seven small U.S. flags adorn a large flag on a makeshift memorial on the side of Highway 84 near the Newtown, Conn., town line as residents mourn victims killed by gunman Adam Lanza, Monday, Dec. 17, 2012. On Friday, authorities say Lanza killed his mother at their home and then opened fire inside the Sandy Hook Elementary School in Newtown, killing 26 people, including 20 children, before taking his own life. (AP Photo/Julio Cortez)

  • In this photo taken with a fisheye lens, a message honoring the victims that died a day earlier when a gunman opened fire at an elementary hang from a bridge near Hawley Pond, Saturday, Dec. 15, 2012, in Newtown, Conn. The massacre of 26 children and adults at Sandy Hook Elementary school elicited horror and soul-searching around the world even as it raised more basic questions about why the gunman, 20-year-old Adam Lanza, would have been driven to such a crime and how he chose his victims. (AP Photo/Julio Cortez)

  • Mourners carry ornaments to decorate the Christmas trees at one of the makeshift memorials for the Sandy Hook Elementary School shooting victims, Monday,Dec. 17, 2012 in Newtown, Conn. Authorities say gunman Adam Lanza killed his mother at their home on Friday and then opened fire inside the Sandy Hook Elementary School in Newtown, killing 26 people, including 20 children, before taking his own life. (AP Photo/Mary Altaffer)

  • Crayons sit on a table outside of a barbershop a day after a gunman opened fire at Sandy Hook Elementary School, Saturday, Dec. 15, 2012, in the Sandy Hook village of Newtown, Conn. The massacre of 26 children and adults at Sandy Hook Elementary school elicited horror and soul-searching around the world even as it raised more basic questions about why the gunman, 20-year-old Adam Lanza, would have been driven to such a crime and how he chose his victims. (AP Photo/Julio Cortez)

  • Crayons sit on a table outside of a barbershop a day after a gunman opened fire at Sandy Hook Elementary School, Saturday, Dec. 15, 2012, in the Sandy Hook village of Newtown, Conn. The massacre of 26 children and adults at Sandy Hook Elementary school elicited horror and soul-searching around the world even as it raised more basic questions about why the gunman, 20-year-old Adam Lanza, would have been driven to such a crime and how he chose his victims. (AP Photo/Julio Cortez)

  • Tamara Doherty

    Shop owner Tamara Doherty, paces outside her store just down the road from Sandy Hook Elementary School, Saturday, Dec. 15, 2012, in Newtown, Conn. The massacre of 26 children and adults at Sandy Hook Elementary school elicited horror and soul-searching around the world even as it raised more basic questions about why the gunman, 20-year-old Adam Lanza, would have been driven to such a crime and how he chose his victims. (AP Photo/David Goldman)

  • Tamara Doherty, Jackie Gaudet

    Shop owners Tamara Doherty, left, and Jackie Gaudet, right, meet outside their stores for the first time since being neighbors, just down the road from Sandy Hook Elementary School, Saturday, Dec. 15, 2012, in Newtown, Conn. The massacre of 26 children and adults at Sandy Hook Elementary school elicited horror and soul-searching around the world even as it raised more basic questions about why the gunman, 20-year-old Adam Lanza, would have been driven to such a crime and how he chose his victims. (AP Photo/David Goldman)

  • Kristin Hoyt

    Kristin Hoyt, 18, of Danbury, Conn., ties a balloon to an overpass up the road from the Sandy Hook Elementary School, Saturday, Dec. 15, 2012, in Newtown, Conn. The massacre of 26 children and adults at Sandy Hook Elementary school elicited horror and soul-searching around the world even as it raised more basic questions about why the gunman, 20-year-old Adam Lanza, would have been driven to such a crime and how he chose his victims. (AP Photo/David Goldman)

  • A Newtown, Conn., resident, who declined to give her name, sits at an intersection holding a sign for passing motorists up the road from the Sandy Hook Elementary School, Saturday, Dec. 15, 2012, in Newtown, Conn. The massacre of 26 children and adults at Sandy Hook Elementary school elicited horror and soul-searching around the world even as it raised more basic questions about why the gunman, 20-year-old Adam Lanza, would have been driven to such a crime and how he chose his victims. (AP Photo/David Goldman)

  • A snowflake ornament with the name of 6-year-old Noah Pozner hangs on a Christmas tree at a makeshift memorial in the Sandy Hook village of Newtown, Conn., Monday, Dec. 17, 2012, as the town mourns victims killed in Friday's school shooting. Pozner, who was killed Friday when gunman Adam Lanza opened fire inside the Sandy Hook Elementary School, will be buried Monday. (AP Photo/Julio Cortez)

  • Twenty-seven small U.S. flags adorn a large flag on a makeshift memorial on the side of Highway 84 near the Newtown, Conn., town line as residents mourn victims killed by gunman Adam Lanza, Monday, Dec. 17, 2012. Authorities say Lanza killed his mother at their home and then opened fire inside the Sandy Hook Elementary School in Newtown, killing 26 people, including 20 children, before taking his own life, on Friday. (AP Photo/Julio Cortez)

  • Jamie Duncan, 16, of Newtown, Conn., lights a candle at one of the makeshift memorials for the Sandy Hook Elementary School shooting victims, Monday,Dec. 17, 2012 in Newtown, Conn. Authorities say gunman Adam Lanza killed his mother at their home on Friday and then opened fire inside the Sandy Hook Elementary School in Newtown, killing 26 people, including 20 children, before taking his own life. (AP Photo/Mary Altaffer)

  • A mourner carries a giant Winnie the Pooh stuffed animal to place at one of the makeshift memorials for the Sandy Hook Elementary School shooting victims, Monday,Dec. 17, 2012 in Newtown, Conn. Authorities say gunman Adam Lanza killed his mother at their home on Friday and then opened fire inside the Sandy Hook Elementary School in Newtown, killing 26 people, including 20 children, before taking his own life. (AP Photo/Mary Altaffer)

  • A hearse arrives at B'nai Israel Cemetery with the body of Noah Pozner, a six-year-old killed in an elementary school shooting, during funeral services, Monday, Dec. 17, 2012, in Monroe, Conn. Authorities say gunman Adam Lanza killed his mother at their home on Friday and then opened fire inside the Sandy Hook Elementary School in Newtown, killing 26 people, including 20 children, before taking his own life. (AP Photo/Julio Cortez)

  • People arrive at B'nai Israel Cemetery during burial services for Noah Pozner, a six-year-old killed in the Sandy Hook Elementary School shooting, Monday, Dec. 17, 2012, in Monroe, Conn. Authorities say gunman Adam Lanza killed his mother at their home on Friday and then opened fire inside the Sandy Hook Elementary School in Newtown, killing 26 people, including 20 children, before taking his own life. (AP Photo/Julio Cortez)

  • Veronika Pozner

    Veronique Pozner waves to the assembled media as she leaves after a funeral service for her 6-year-old son Noah Pozner, Monday, Dec. 17, 2012, in Fairfield, Conn. Noah Pozner was killed when Adam Lanza walked into Sandy Hook Elementary School in Newtown, Conn., Friday and opened fire, killing 26 people, including 20 children. (AP Photo/Jason DeCrow)

  • Sandy Hook Elementary School Shooting

    Twenty seven wooden stand in a yard down the street from the Sandy Hook School December 16, 2012 in Newtown, Connecticut. Twenty-six people were shot dead, including twenty children, after a gunman identified as Adam Lanza opened fire at Sandy Hook Elementary School. Lanza also reportedly had committed suicide at the scene. A 28th person, believed to be Nancy Lanza, found dead in a house in town, was also believed to have been shot by Adam Lanza. (Photo by Spencer Platt/Getty Images)

  • Sandy Hook Elementary School Shooting

    Newtown residents Claire Swanson, Kate Suba, Jaden Albrecht, Simran Chand and New London, Connecticut residents Rachel Pullen and her son Landon DeCecco, hold candles at a memorial for victims on the first Sunday following the mass shooting at Sandy Hook Elementary School on December 16, 2012 in Newtown, Connecticut. (Photo by Mario Tama/Getty Images)

  • Sandy Hook Elementary School Shooting

    U.S. President Barack Obama waits to speak at an interfaith vigil for the shooting victims from Sandy Hook Elementary School on December 16, 2012 at Newtown High School in Newtown, Connecticut. (Photo by Olivier Douliery-Pool/Getty Images)

  • Sandy Hook Elementary School Shooting

    Eknoor Kaur, 3, stands with her father Guramril Singh during a candlelight vigil outside Newtown High School before an interfaith vigil with President Barack Obama, Sunday, Dec. 16, 2012, in Newtown, Conn. A gunman walked into Sandy Hook Elementary School in Newtown Friday and opened fire, killing 26 people, including 20 children. (AP Photo/Jason DeCrow)

  • Sandy Hook Elementary School Shooting

    New London, Connecticut resident Rachel Pullen (C) kisses her son Landon DeCecco at a memorial for victims near the school on the first Sunday following the mass shooting at Sandy Hook Elementary School on December 16, 2012 in Newtown, Connecticut. (Photo by Mario Tama/Getty Images)

  • Sandy Hook Elementary School Shooting

    US President Barack Obama speaks during a memorial service for the victims and relatives of the Sandy Hook Elementary School shooting on December 16, 2012 in Newtown, Connecticut. Twenty-six people were killed when a gunman entered Sandy Hook Elementary and began a shooting spree. AFP PHOTO/Mandel NGAN

  • Sandy Hook Elementary School Shooting

    A woman covers her face as US President Barack Obama reads out the names of children killed during Sandy Hook Elementary School shooting at a interfaith memorial for victims and relatives at the Newtown High School on December 16, 2012 in Newtown, Connecticut. Twenty-six people were killed when a gunman entered Sandy Hook Elementary and began a shooting spree. AFP PHOTO/Mandel NGAN

  • Sandy Hook Elementary School Shooting

    A woman pays respects at a memorial outside of St. Rose of Lima Roman Catholic Church, Sunday, Dec. 16, 2012, in Newtown, Conn. On Friday, a gunman allegedly killed his mother at their home and then opened fire inside the Sandy Hook Elementary School in Newtown, killing 26 people, including 20 children. (AP Photo/Julio Cortez)

  • Sandy Hook Elementary School Shooting

    Residents wait for the start of an interfaith vigil for the victims of the Sandy Hook Elementary School shooting on Sunday, Dec. 16, 2012 at Newtown High School in Newtown, Conn. A gunman walked into Sandy Hook Elementary School Friday and opened fire, killing 26 people, including 20 children. (AP Photo/Evan Vucci)

  • Sandy Hook Elementary School Shooting

    Cheryl Girardi, of Middletown, Conn., kneels beside 26 teddy bears, each representing a victim of the Sandy Hook Elementary School shooting, at a sidewalk memorial, Sunday, Dec. 16, 2012, in Newtown, Conn. A gunman walked into Sandy Hook Elementary School in Newtown Friday and opened fire, killing 26 people, including 20 children.(AP Photo/David Goldman)

  • Sandy Hook Elementary School Shooting

    Connecticut State Police officers respond to a bomb threat outside of St. Rose of Lima Roman Catholic Church, Sunday, Dec. 16, 2012, in Newtown, Conn. Worshippers hurriedly left the church Sunday, not far from where a gunman opened fire Friday inside the Sandy Hook Elementary School in Newtown. (AP Photo/Julio Cortez)

  • Sandy Hook Elementary School Shooting

    Ava Staiti, 7, of New Milford, Conn., looks up at her mother Emily Staiti, not pictured, while visiting a sidewalk memorial with 26 teddy bears, each representing a victim of the Sandy Hook Elementary School shooting, Sunday, Dec. 16, 2012, in Newtown, Conn. A gunman walked into Sandy Hook Elementary School in Newtown Friday and opened fire, killing 26 people, including 20 children. (AP Photo/David Goldman)

  • Sandy Hook Elementary School Shooting

    This photo provided by the family shows Jessica Rekos. Rekos, 6, was killed Friday, Dec. 14, 2012, when a gunman opened fire at Sandy Hook Elementary School, in Newtown, Conn., killing 26 children and adults at the school, before killing himself. (AP Photo/Courtesy of Rekos Family)

  • Sandy Hook Elementary School Shooting

    A U.S. flag flies at half staff outside the Newtown High School before President Barack Obama is scheduled to attend a memorial for the victims of the Sandy Hook Elementary School shooting, Sunday, Dec. 16, 2012, in Newtown, Conn. A gunman walked into Sandy Hook Elementary School in Newtown Friday and opened fire, killing 26 people, including 20 children. (AP Photo/David Goldman)

  • Sandy Hook Elementary School Shooting

    David Freedman, right, kneels with his son Zachary, 9, both of Newtown, Conn., as they visit a sidewalk memorial for the Sandy Hook Elementary School shooting victims, Sunday, Dec. 16, 2012, in Newtown, Conn. A gunman walked into Sandy Hook Elementary School in Newtown Friday and opened fire, killing 26 people, including 20 children. (AP Photo/David Goldman)

  • Sandy Hook Elementary School Shooting

    A man reacts at the site of a makeshift memorial for school shooting victims in Newtown, Conn., Sunday, Dec. 16, 2012. A gunman opened fire at Sandy Hook Elementary School in the town, killing 26 people, including 20 children before killing himself on Friday. (AP Photo/Charles Krupa)

  • Sandy Hook Elementary School Shooting

    People wait in line to attend an interfaith vigil with President Barack Obama, Sunday, Dec. 16, 2012, in Newtown, Conn. A gunman walked into Sandy Hook Elementary School in Newtown Friday and opened fire, killing 26 people, including 20 children. (AP Photo/Jason DeCrow)

  • Sandy Hook Elementary School Shooting

    Residents greet each other before the start of an interfaith vigil for the victims of the Sandy Hook Elementary School shooting on Sunday, Dec. 16, 2012 at Newtown High School in Newtown, Conn. A gunman walked into Sandy Hook Elementary School Friday and opened fire, killing 26 people, including 20 children. (AP Photo/ Evan Vucci)

  • Sandy Hook Elementary School Shooting

    Residents greet each other before the start of an interfaith vigil for the victims of the Sandy Hook Elementary School shooting on Sunday, Dec. 16, 2012, at Newtown High School in Newtown, Conn. A gunman walked into the school Friday and opened fire, killing 26 people, including 20 children. President Barack Obama is to scheduled to speak at the event. (AP Photo/ Evan Vucci)

  • Sandy Hook Elementary School Shooting

    Residents greet each other before the start of an interfaith vigil for the victims of the Sandy Hook Elementary School shooting on Sunday, Dec. 16, 2012, at Newtown High School in Newtown, Conn. A gunman walked into the elementary school Friday and opened fire, killing 26 people, including 20 children. President Barack Obama is scheduled to speak during the vigil. (AP Photo/ Evan Vucci)

  • Sandy Hook Elementary School Shooting

    This image provided by the family shows Grace McDonnell posing for a portrait in this family photo taken Aug. 18, 2012. Grace McDonnell was killed Friday, Dec. 14, 2012, when a gunman opened fire at Sandy Hook Elementary School in Newtown, Conn., killing 26 children and adults at the school. (AP Photo/Courtesy of the McDonnell Family)

  • Sandy Hook Elementary School Shooting

    This Nov. 18, 2012 photo provided by John Engel shows Olivia Engel, 6, in Danbury, Conn. Olivia Engel, was killed Friday, Dec. 14, 2012, when a gunman opened fire at Sandy Hook Elementary School, in Newtown, Conn., killing 26 children and adults at the school. (AP Photo/Engel Family, Tim Nosezo)

  • Emilie Alice Parker

    This 2012 photo provided by the family shows Emilie Alice Parker. Parker was killed Friday, Dec. 14, 2012, when a gunman opened fire at Sandy Hook elementary school in Newtown, Conn., killing 26 children and adults at the school. (AP Photo/Courtesy of the Parker Family)

  • Noah Pozner

    This Nov. 13, 2012 photo provided by the family via The Washington Post shows Noah Pozner. The six-year-old was one of the victims in the Sandy Hook elementary school shooting in Newtown, Conn. on Dec. 14, 2012. (AP Photo/Family Photo)

  • Sandy Hook Elementary School Shooting

    This handout image provided by ABC News, shows Nancy J. Lanza mother of suspected mass shooter Adam Lanza at an unspecified time and place. Twenty six people were shot dead, including twenty children, after a gunman identified as Adam Lanza opened fire at Sandy Hook Elementary School. Lanza also reportedly had committed suicide at the scene. A 28th person, believed to be Nancy Lanza was found dead in a house in town, was also believed to have been shot by Adam Lanza. (Family of Nancy Lanza / ABC News / Getty Images)

  • Sandy Hook Elementary School Shooting

    <a href="http://www.huffingtonpost.com/huff-wires/20121215/us-school-shooting-victims/?utm_hp_ref=homepage&ir=homepage">Lauren Rousseau, 30,</a> had started a job as a full-time teacher at Sandy Hook Elementary School this fall. She was killed in the Dec. 14 shooting at the school.

  • Sandy Hook Elementary School Shooting

    School psychologist Mary Sherlach, 56, was killed during an attempt to stop gunman Adam Lanza during the Dec. 14 mass shooting at Sandy Hook Elementary School in Newtown, Conn. <a href="http://www.huffingtonpost.com/huff-wires/20121215/us-school-shooting-victims/?utm_hp_ref=homepage&ir=homepage">Sherlach and school principal Dawn Hochsprung</a> reportedly both lunged at Lanza in an attempt to protect the school's students and teachers. Both Sherlach and Hochsprung were killed.