Cold Case Files

Nearly 20 years after they first suspect him, police arrest Gary Ridgway, the most prolific known serial killer in U.S. history.

BTK Dennis Rader terrorizes Wichita, Kan., for decades, leaving at least 10 murder victims in his wake.

When a church deacon is found shot to death it looks like police may have stumbled upon a multi-party murder plot; a wife remains a key suspect in her husband's murder case for six years, until she attempts to prove her own innocence.

Police play a wild hunch that pays off in the capture of a serial rapist; after 26 years, investigators finally solve the murder of a 6-year-old girl.

A detective tracks down a man who raped and murdered a 6-year-old girl 10 years earlier; police search for the killer of an 18-year-old hitchhiker.

Publicity of a man's mandatory release in Texas brings forth a witness to a murder after 24 years in Michigan.

A cell phone and an ATM card lead to the apprehension of a rapist.

Det. Vince Velazquez of Atlanta and Capt. Russell Popham of East Point, Ga., work to solve the 1995 rape and murder of 14-year-old Nacole Smith, one of Atlanta's most notorious unsolved crimes.

DNA evidence solves the murder of a female law student; a man confesses to the random killing of a bowhunter.

In 1987, a young girl is found raped and strangled; in 1983, a young mother is raped and murdered at work.

A wiretapped conversation between a suspected killer and his sister cracks a 9-year-old murder case; a geologist finds human bones, solving the murder of a Virginia woman.