Rather, investigators searching his belongings found numerous documents on rampage killings, including a book entitled "Rampage in My Mind -- Why Students Kill," said Robert Heimberger, president of the Bavarian State Criminal Police Office.
Munich shooting: What we know German Interior Minister Thomas de Maiziere said Saturday it appeared that, before the attack, the gunman had hacked a woman"s Facebook account to post a false "special offer" promising discounts at the McDonald"s branch where the attack began, in order to lure people to the scene. Investigators were still working to confirm that, he said.
Police said there was also likely to be significance in the timing of the attack, five years to the day since Anders Behring Breivik killed 77 people in Norway in 2011, many of them attendees at a youth camp.
Munich Police Chief Hubertus Andrae said both attacks had predominantly targeted young people, with most of the victims in Munich in their teens.