A Norwegian gunman, Anders Behring Breivik, 32, pulled off one of history's worst mass shootings on Friday night July 22, 2011.
Dressed as a police officer, Breivik gunned down over 90 people at an island youth retreat before being arrested. Investigators are still searching the surrounding waters, where people fled the attack, which followed an explosion in nearby Oslo that killed seven, an explosion police say was set off by the same suspect.
Investigators say that the massacre is not linked to any international terrorist organizations but the suspects motives was still unknown.
Anders was a loner who lived with his mother in a wealthy suburb and is well educated. He had extreme right wing views and hated muslims...
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