Elizabeth Begaren was murdered on a freeway ramp, and the police are suspicious of her husband, Nuzzio.

A cold case involving the disappearance of a 15-year-old boy heats up after a decade when an officer revisiting the case believes he may have been murdered.

Investigators trying to figure out who would would burn down Wayne Smallwood's residence. Was it someone inside the house?

In the week's following Ben's death, there has been some mysterious movement going on within the family.

Three sisters relive the nightmare of watching their abusive father beating their mother to death in front of them when they were children.

Rusty Sneiderman is gunned down in his child's daycare parking lot, and police need to move quickly before the gunman strikes again.

Could Steve Nunn, the son of the former Kentucky governor Louis B. Nunn be on a murderous rampage?

Could the police trust the evidence provided by Jameson Kennedy, a criminal behind bars? Could he just be trying to get his revenge against his ex, Holly McFeeture?

On the search for Shannan Gilbert, the bodies of four women, all in their 20s and presumed to be sex workers, were found over three days. They were all fully intact skeletons discovered in burlap.

Since 2010, 17 bodies have been discovered in and around New York's Gilgo Beach. The bodies found were of female escorts who solicited their services on Craigslist. Could a group of people be responsible?

Enter Oak Beach: a desolate community considered a party town in the 1970s.

Since 2010, 17 bodies have been discovered in and around New York's Gilgo Beach. Authorities believe this could be the work of the Long Island Serial Killer.

The Long Island Serial Killer is believed to have murdered Shannan Gilbert- but the Gilbert family has suffered another shocking tragedy. Shannan’s mother Mari was murdered on July 23, 2016, two months after her interview with Investigation Discovery’s People Magazine Investigates.

On the night of her disappearance, Shannan Gilbert frantically called 911 saying, "They’re Trying to Kill Me!"

In 2010, a vivacious young escort, Shannan Gilbert, visits a client on the south shore of Long Island and vanishes under mysterious circumstances. Her disappearance leads police to the bodies of other victims buried along the shore. This discovery unleashes a wave of secrets, suspects, recriminations and conspiracy theories in the hunt for a serial killer who targets prostitutes.

In 2011, Kansas City: Electrician Jeremy Irwin returns home after a late-night shift and his 10-month-old daughter Lisa is missing. He wakes up his fiancée Debbie Bradley and their two young sons and the family frantically searches for Lisa. She is nowhere to be found. Police initially focus their investigation on neighbors and drifters, but in a stunning turnaround, accuse the family of being responsible. As the case gains national attention and the two sides battle it out in the media, reputations are ruined, relationships are broken and the fate of a small child is left hanging in the balance.