[Breaking news update at 8:36 a.m. ET]
The Munich attacker left behind a long manifesto on his computer, which investigators are still analyzing, Robert Heimberger, president of the Bavarian state criminal police office, said Sunday.
Officials said that photographs found on the shooter’s camera showed he had also visited the German town of Winnenden, the site of a deadly 2009 school shooting.
[Previous story, published at 8:28 a.m. ET]
The gunman who killed nine people in a rampage in Munich on Friday appears to have planned the attack for a year, Robert Heimberger, president of the Bavarian state criminal police office, said at a press conference Sunday.
“He appears to have planned this act since last summer,” Heimberger said. “He completely occupied himself with this act of rampage.”
Developing story – more to come