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 police must let the case go cold. And after watching an episode of 'Cold Case Files' on television, a woman asks police to reopen the 24-year-old case of her cousin's disappearance.
Police play a hunch that pays off in the capture of a serial rapist. Investigators solve the murder of a 6-year-old girl. A man looking to clear his conscience gives police vital information. And police are baffled by the murder of an 86-year-old woman.
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 a detective pays off when he tracks down the man who raped and murdered a 6-year-old girl. And when police search for the killer of an 18-year-old hitchhiker, they find that the victim's diary is one of their best clues.
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, KS, area for years.
We look at 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.
DNA evidence found on a murder victim leads to the arrest of Houston's notorious "tourniquet killer." A young woman is found shot and burned in a California olive orchard.
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.
We follow Det. Vince Velazquez of Atlanta and Capt. Russell Popham of East Point, Ga., as they work to solve the 1995 rape and murder of 14-year-old Nacole Smith, one of Atlanta's most notorious unsolved crimes.
Thirty-two years after the killing of a law student, police use DNA found on her pantyhose to finally track down the killer. And psychologists suggest that a detective take a page from the game of romance, and play hard to get with the killer.
A woman is found raped and strangled in 1986. Her friend remains the chief suspect for 17 years, until DNA fingers another man. In 1983, a young mother is raped and murdered at work, and in 2003, detectives reopen the case.
A detective vows not to shave until he solves the murder of a young Oregon woman. And in a California case, investigators track down a killer with the help of DNA found on the duct tape used to wrap the murder victim's head.
A forensic scientist's painstaking examination of a rape kit helps solve the 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 - a top suspect's former therapist.