Teenager Jay Sewell's life was taken in a brutal attack orchestrated by jealous Daniel Grogan, who had heard that Jay was seeing his former girlfriend.

24-year-old Alice Ruggles was murdered by her jealous ex-boyfriend when he climbed in through an open window and slashed her throat six times, almost cutting through to her spine.

When Darren Murphy saw his partner of less than three months, Olivia Dunlea, with another man, he stabbed the mother of three in the head and neck while she lay in bed.

When Lanny Horwitz was shot nine times in his home in Jupiter, Florida, it didn’t take long for his wife, Donna, to become a prime suspect in the case.

When Kendra Hatcher is shot and killed in cold blood, suspicion falls on her partner's former girlfriend, Brenda Delgado, a woman who'll do anything to end the relationship.

Michelle Boat believed that one person stood in the way of a reconciliation with her husband, and that person was Tracy Mondabough. So she took a knife and stabbed her to death.

After Craig Finney saw ex-girlfriend Patty Harker leave a bar with a man, he took a shotgun, kicked open the door to her home, and shot her as she tried to flee. Then he shot himself.

17-year-old Andy Rodriguez grew jealous when Juan Rivera accepted rides to school from his girlfriend. So he stabbed his classmate five times with a box cutter, using enough force to pierce his heart.

Pedro Bravo was distraught when ex-girlfriend, Friman, began dating his friend, Christian Aguilar. Obsessed with separating the couple, he devised a plan that would lead to death.

On December 15, 1994, Joann Katrinak and her baby boy disappeared from their home. Four months later, authorities found both bodies. After eliminating husband Andrew from their enquiries, suspicion quickly fell on his ex-girlfriend.

William Espinosa Ubando was arrested on September 20, 2010 for the brutal beating of his girlfriend, Ritchie Lei Lusung Campued. Obsessed by her, he couldn’t face life when she wanted to leave. So he turned to murder.

In a jealous rage 48-year-old Michael Gunther killed girlfriend Sally Kennedy and then shot a man she was sleeping with, 36-year-old Michael Zawodny, 11 times at a carnival near Offutt Air Force Base in Nebraska.