10/16/2014 03:02 EDT | Updated 12/16/2014 05:59 EST

Luka Magnotta trial: Jury to see video depicting crime

The jury in the Luka Magnotta trial spent Thursday morning hearing how the Montreal police technological crimes unit worked to find the user who uploaded a video to a "gore site" that depicted elements of a killing.

Const. Nadine Paoliello told the Montreal courtroom that on May 29, 2012, her superiors informed her there was a video posted online related to a homicide investigation. She was ordered to save a version on the police department’s server.

Paoliello is one of several Montreal police officers who have testified before the court, detailing how evidence was collected after a man's torso was discovered outside a Montreal apartment building. 

Magnotta was charged with five offences, including first-degree murder, committing an indignity to a body and mailing obscene material. He has pleaded not guilty to those charges, but he admits the physical acts informing them. His lawyer has told the court he intends to argue Magnotta should not be held criminally responsible for his actions because of mental illness.

The Crown alleges the killing of 33-year-old Concordia student Jun Lin was premeditated.

Video will be played for jury

In court, Paoliello described the video she was ordered to preserve as 10 minutes and 22 seconds long with music playing in the background. She said the video contained shots of a man lying naked on a bed and subsequent shots of dismembered body parts.

The Crown informed the 14 members of the jury they would be viewing the video, which has been referred to by several witnesses over the past three weeks of testimony, on Thursday afternoon.

Paoliello was given the task of tracking down the user who posted the video and contacting the two gore websites to get it removed.

She described gore sites as those showing images that are visually shocking, generally with a lot of blood, dismemberment and violence.

Paoliello worked to contact the webmasters of the two sites that were hosting the video, each under a different name.

She was able to identify the user who uploaded the video as "Captain Flyscratch."

An administrator at one of the sites gave her an IP address for the user and agreed to take down the video after learning that it may depict elements of a homicide. 

Magnotta exchanged small boxes for larger ones

Earlier on Thursday, the jury in the trial heard from two employees who were at the Jean-Coutu pharmacy the accused used to send packages containing some of the victim Jun Lin's body parts.

Tomokazu Lee, the man working the pharmacy's Canada Post counter on May 25, 2012, remembered Magnotta coming in twice that day: once to return previously purchased boxes because they were too small for what he wanted to send, and a second time just after 7 p.m. to mail two white packages.

The boxes stayed at the pharmacy all weekend and were picked up Monday morning by Canada Post workers.

The receipt for both transactions were entered into evidence, and the court heard Magnotta signed his name "Rocco" for the reimbursement.

The pharmacy's assistant manager, René Tremblay, showed the court surveillance video from that evening, captured by some of the store's 21 cameras.

Magnotta is seen walking through the store, wearing a white T-shirt, khaki pants, without any sunglasses.

Paoliello will continue her testimony Thursday afternoon.