Anders Behring Breivik knew it would take practice to be able to slaughter dozens of people before being shot by police. In a chilling account, the far-right fanatic claimed Thursday that he sharpened his aim by playing the video game "Call of Duty: Modern Warfare" for hours on end.
Breivik told an Oslo court he also took steroids to build physical strength and meditated to "de-emotionalize" himself before the bombing and shooting rampage that left 77 people dead. He figured he had no more than a 5 percent chance of not being killed by police.