What is known is that Gill, who kept a blog on the website VampireFreaks.com, awoke Wednesday morning, listened to the music of MEGADETH and guzzled whisky. He packed an arsenal of three weapons — a 9 mm Beretta semi-automatic rifle, a Glock .45-calibre pistol and a 12 gauge shotgun.
All the guns were legally registered in the killer's name.
Gill drove from the suburban Laval home where he lived with his parents to downtown Montreal, parked his Pontiac Sunfire outside a daycare centre and calmly removed the weapons from the trunk.
Brandishing a rifle, he walked nonchalantly to the main entrance of Dawson College. He shot several people who were on the sidewalk, then proceeded inside, followed by two police officers who happened to be nearby.
Inside the college, Gill shot at random, but singled out De Sousa, who was shot repeatedly at point-blank range. The killer took at least two hostages, using them as human shields as police followed in hot pursuit.
In an exchange of gunfire with police, the gunman was hit in the arm. Gill then took his pistol, put it to his chin and pulled the trigger.
The rampage, beginning to end, was over in less than 10 minutes.