T03:C01 - S03:E01 - Fatal Compulsion

Forensic psychologists delve into the minds of serial killers, explaining why, most often, they can be a friendly neighbor or the tenacious co-worker - the one who hides his or her dark side better than anyone else. Detectives show us what forensic techniques, the VICAP system, and clever investigating have done to bring these killers to justice.