German police late Thursday backed away from earlier assertions that a teen posted warnings on a German-language Web site before killing 15 people in a shooting rampage.
Police spokesman Gabor Sipos said investigators now have doubts about whether Tim Kretschmer posted he was "fed up with this bloody life" and was going to take a weapon to his old school and "give them hell."
Kretschmer killed 12 people at his former school in Winnenden, Germany, on Wednesday and took three more lives elsewhere before killing himself, police said. Read full article »
CNN's Diana Magnay contributed to this report.