This special edition of Cold Case Files offers an inside look, rarely seen, at an active cold case investigation. We follow Det. Vince Velazquez of Atlanta and Capt. Russell Popham of East Point, Ga.
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.
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.
After running DNA tests on more than 50 suspects, Ohio police finally get 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 pawned gun and a stolen pick-up truck are the clues that investigators need to solve an elderly man's murder. And a tip from a prison informant cracks open the 15-year-old case of a man who had his ex-wife killed.
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