Munich maniac Ali Sonboly had been researching mass shootings and was obsessed with a teenage killer who massacred 15 of his classmates.
The 18-year-old was carrying a book in his rucksack called Why Kids Kill: Inside the Minds of School Shooters as he wandered around Munich, killing nine.
Police who raided his family home this morning also found documents on other mass shootings.
The 18-year-old was obsessed with Tim Kretschmer, 17, who killed 15 in Winnenden, southern Germany, in 2009.
Robert Heimberger, the head of Bavaria’s criminal police, said it appeared the shooter, who was been identified in multiple media accounts as Ali David Sonboly, had hacked a girl’s Facebook account and sent messages advertising a discounted offer to encourage people to come to the fast-food restaurant on Friday afternoon.
1. The Shooter Was ‘Depressed’ & ‘Deranged’ & Had a Book About School Shootings, Police say
In a Saturday, July 23 press conference, Munich police described Sonboly as depressed and deranged, and said he had received psychiatric treatment in the past, AFP said. In a citizen video captured while he was on a rooftop, Sonboly had mentioned being bullied and previously seeking medical treatment.