‘It wasn't going to take much to push him over the edge'

“LONER” Jake Davison was hooked on violent video games by the age of just five and on internet porn by 11, former school pals say.

- PATRICK HILL, DANIEL O’MAHONEY and AMY SHARPE

One said of the 22-year-old virgin: “It was just a matter of time until he was going to blow up.”

Another said: “He’d play Grand Theft Auto, Call of Duty and Left 4 Dead. He played games like that when he was very young. He was always obsessed with guns. In the playground he’d pretend to shoot other kids like they were zombies. I never thought he’d do it for real.”

Davison became reclusive after leaving school, becoming fixated on bodybuilding.

Police were examining 13 crime scenes, Davison’s computer and social media accounts.