After computer whiz Cari Farver goes missing, she starts sending threatening text messages to her new boyfriend and his ex-lover. It's up to the police to determine if she's a deranged stalker or a murder victim.

Young mother Tyshika Askins is found strangled to death in her home. After charging the wrong man, police realize the key to solving the case lies in an orange juice container left out on her kitchen counter.

When a high school sophomore is found brutally raped and murdered, the clock is ticking as Las Vegas Police hunt a monster. Can they catch him before he strikes again?

A 59-year-old grandmother and teacher is discovered beaten and stabbed to death in her home on Mother's Day. Was it a family feud that turned horribly wrong?

In Pensacola, FL, a beloved barber is gunned down in his shop in broad daylight. DNA left at the crime scene may hold the answer to solving this murder mystery.

Penske Racing chef Cindy Albrecht goes missing from her home near the Indianapolis Motor Speedway in Speedway, IN. Then, her headless body is later found by deer hunters.

After grandmother Irene Kennedy is found dead in a park, a distant relative is charged with her murder, splitting her family apart. It will take years, another killing and a jail house snitch to bring the family back together.

Young mother Nancy Klinger goes missing after telling friends she's working undercover on a black-market baby sting. Could a police officer be responsible for her disappearance?

A 19-year-old convenience store clerk vanishes in Sheridan, WY. A gruesome discovery seems to point police to a cold-blooded killer. Would a gruesome discovery point police to a cold-blooded killer?

Anna-Sigga Nicolazzi meets the detective and prosecutor who took on the case of Karen Ann Watson, a wife and mother who was brutally stabbed to death. Nearly 30 years after the crime, they track down a killer.