Police in the Outaouais say four 19-year-olds were travelling in a vehicle along Highway 105 near Loretta Way when the driver lost control as she tried to manoeuvre along a curve in the road.
The vehicle, which was heading north, flew off the highway at about 3:30 a.m., about a 15-minute drive north of Ottawa.
Jonathan Thompson died at the scene, according to his mother Marie-Chantal. The driver, a woman, was sent to the Hull hospital with non-life threatening injuries after she was arrested at the scene, police say.
The driver is currently in serious condition.
The mother said she was in shock Saturday as she visited the site where her son died. She said Thompson had recently returned to high school seeking to turn his life around.
Crash happened at dangerous curve
Nearby residents said the section where the driver lost control is commonly difficult to navigate.
"That's a bad curve. We've had a lot of accidents here and it's mostly because of people going too fast," said Valérie Richard.
Jean-Pierre Dubé, who also lives near the crash scene, said incidents such as Saturday's crash have been "inevitable" due to speeding vehicles, adding one flipped and crashed last weekend. He said the speed limit needs to be lowered in the area from the current limit of 70 kilometres per hour.
Alcohol and speed remain possible factors in the crash and charges could be laid against the driver, who gave a blood sample.
A section of Highway 105 was closed for several hours as police investigated the crash scene but it reopened at about noon Saturday.