The March 2003 murder of Ramona Krotine near Cleveland, is investigated. Her husband, Jeffrey, stood trial for the killing three times. Susan Spencer is the correspondent.

An investigation into the 1988 murder of Lee Jones in Mill Creek, Wash., for which her husband, Jerry Jones Jr., stands trial for the third time. He was convicted in the first two trials, but the convictions were overturned. Peter Van Sant is the correspondent.

The 1995 murder of Vickie Barton in Springboro, Ohio, is investigated. Barton's husband, Jim, a former police officer, is accused of the crime. Peter Van Sant is the correspondent.

The 1997 murder of Doris Angleton, a millionaire's wife who was found shot 13 times in her Houston home, is investigated. Bill Lagattuta is the correspondent.

David Harmon was bludgeoned to death in 1982, while lying in bed next to his wife in Olathe, Kansas. Can modern technology make a breakthrough in this cold case?