Unusual SuspectsSeason 42012 · 13 episodesEpisodes1Pure EvilThe 1995 death of a Chicago woman whose body was found on a Wisconsin highway is detailed in the Season 4 premiere.2The Perfect SuspectIn Arkansas, three women are murdered over the course of three years.3Wolf in Sheep's ClothingThe 1995 murder of an 8-year-old girl sparks a manhunt for her killer.4Blood TrailThe 1999 slaying of a young woman in Germantown, Wis., is recalled.5Mother's Day MurdersThe 1985 murders of a young military wife and two of her daughters are investigated.6Gruesome DiscoveryRecalling the 1994 murder case of a young mother who was beaten and left in a garbage bin.7A Bike Ride to MurderThe 1991 murder of a young girl in San Diego is investigated.8Murder on the MenuThe 2004 murder and dismemberment of a chef is investigated.9Triple ThreatThe 1993 strangling death of a young mother in California is probed.10City Under SiegeA look at the 2006 shooting death of a young nightclub worker in Scottsdale, Ariz.11Killings in KentuckyA 1993 triple homicide results in the deaths of a Kentucky veterinarian and his family.12No MercyThe 2001 strangling death of a mother of triplets in Puyallup, Wash., is investigated.13Maritime MurderThe 1982 poisoning death of a naval officer is investigated.Season 1Season 2Season 3Season 5Season 6Season 7Season 8
