This episode originally aired September 12, 2019. The woman was missing for a month. Police find her car but no evidence of foul play... only a fingerprint and a set of keys. There's a code on one of the keys, which they hope will unlock not only a door, but also the mystery of h ...Show more
Sign Of The Zodiac
This episode originally aired September 9, 2019. For six years, a serial killer prowled the streets of New York City. He wrote letters to police and "The New York Post," indicating he would kill twelve people, one for each astrological sign. Forensic astronomy, handwriting analys ...Show more
When a 79-year-old woman is found shot to death in her own home, investigators initially suspect her long-time husband and a violent neighbor with a penchant for threats. But shell casings recovered at the scene and a high-tech database reveal the killer to be the last person any ...Show more
A mortally wounded woman crawls to call 911. Her husband who wants a divorce she will not give him gets a hard look from police. But he says he has an airtight alibi for the exact time of the murder. The intricate forensic science of ballistics is brought to bear to and draws a d ...Show more
Someone targets members of law enforcement in a peaceful Texas county. Numerous suspects emerge and murders continue as detectives race against time. Finally, a single bullet casing uncovers the bizarre reason the killer wanted revenge.To learn more about how HLN protects listene ...Show more
A 20-year-old woman sets out on her bike and never returns. Her body found just a few miles from her house in Snohomish County, Washington, with a gunshot wound to the head. Who would do such a thing? Years go by without any hard evidence or leads, until a new generation of inves ...Show more