Cold Case Files Classic

After running DNA tests on more than 50 suspects, Ohio police finally get a good a lead on a serial rapist suspected of attacking at least 14 women. And a cigarette butt found at a murder scene helps investigators to smoke out the killer 29 years later.

A high school janitor is suspected in the murder of a young girl, but with only circumstantial evidence to go on, police must let the case go cold.

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

The brutal stabbing murder of a Florida woman is solved when police find crucial DNA evidence in spit left on a pavement. And a man is put away for rape and murder when his footprint matches the footprint he left at the crime scene 18 years before.

A bloody dagger and a phone tap help detectives solve a 20-year-old murder case. And DNA taken from an eyelash found on a dead prostitute's body brings a killer to justice.

The dogged work of an Alberta, Canada, detective finally pays off when he tracks down the man who raped and murdered a 6-year-old girl 10 years earlier.

A look at the case of James Allen Selby, a serial rapist who eluded police for years while attacking 11 women in five states - Oklahoma, Nevada, California, Arizona, and Colorado.

The story of the hunt for one of the most notorious serial killers in recent American history--the BTK killer, who terrorized the Wichita, Kansas, area for years.

In this special 100th edition of Cold Case Files, we look at the biggest serial murder case in U.S. history--the 20-year hunt for the Green River Killer. Dave Reichert, the detective who made finding the killer his obsession, walks us through the case.

When an adulterous church deacon is found shot to death in the back seat of his car, it looks like police may have stumbled upon a multi-party murder plot. And, a wife remains a key suspect in her husband's murder case for six years.

Law enforcement officials fear they may have to release a serial killer from prison until a 24-year-old murder case gives them a chance to lock him up for good.

DNA evidence found on a murder victim whose body had been dumped in a Dairy Queen drive-thru leads to the arrest of Houston's notorious "tourniquet killer."

A video tape made at an ATM machine helps police in Louisville, KY, to nab a man suspected of raping 13 women. And a DA investigator in Georgia helps crack a murder case that his father, a police chief, first worked on 30 years before.

This special edition of Cold Case Files offers an inside look, rarely seen, at an active cold case investigation.

Thirty-two years after the killing of University of Michigan law student Jane Mixer, police use DNA found on her pantyhose to finally track down the killer.

On a summer night in 1987 a mother worries and waits for her 19-year-old daughter to come home. But Diana never comes home and she's found raped and strangled near the Hudson River. Investigators suspect her friend, Michael because his alibi is shaky.

A detective vows not to shave until he solves the murder of a young Oregon woman. It takes three years and a string of Mexican Mafia informants to crack the case and allow the dedicated detective to shave his beard.

A forensic scientist's painstaking examination of a rape kit helps solve the 15-year-old murder of a teenage girl. And when California investigators probe the murder of a 71-year-old man, they get help from a surprising source.

Nine years after the murders of a mother and her teenage daughters, a wiretapped conversation between the suspected killer and his sister helps police to crack the case.