Two years ago, Evelyn Garcia was shot to death. Police arrested her husband -- a twice convicted felon -- but when they tried to trace the murder weapon, the manufacturer said the gun had never been made. How could a gun that kills not exist? FRONTLI... (more)NE and the Center for Investigative Reporting take viewers inside the illegal handgun market and follow federal agents as they investigate one of their biggest cases ever into stolen guns and the illicit gun market.