Earlier this month, Deputy Joseph William Balicki walked out of the Ronald Reagan federal courthouse in Santa Ana a happy man--off the hook for a killing. The veteran deputy, who has a history of questionable conduct involving Latinos, gunned down Roberto Peralez during a 2003 traffic stop in Stanton. Peralez, an unarmed 69-year-old man with a checkered criminal past, failed to obey all of Balicki's commands at the scene and was shot three times in the chest and heart. Ten minutes later Balicki