Angry about a child custody dispute, Scott Dekraai armed himself with three handguns, drove to the beauty salon in Seal Beach, California, where his ex-wife worked and opened fire. The two-minute rampage in October 2011 left eight people dead and one injured, making it the worst mass shooting in Orange County history. Within an hour, Dekraai was pulled over by police and confessed. Numerous witnesses, including a survivor, could testify that he was the shooter. There was no reason to think that convicting him would be difficult.