Kimberly Greene-Medina’s disappearance in 1996 remained unanswered until 2005, when her husband, Michael Medina, was arrested for killing his 16-month-old son, Degan, as an act of revenge against his second wife, Becky.

On 6 July 2012, surveillance camera footage captured 16-year-old Skylar Neese sneaking out of her bedroom window and getting into a car at 12:30am. This was the last time Skylar was seen alive.

In July 2013, Dana Mackay was lying in bed when her husband’s mistress, along with two accomplices, broke into her home and beat her to death. Nicole Houchin, Nace Houchin and Gregory Crawford were part of a murder-for-hire scheme.

In Boulder, Colorado, Adam Densmore brutally murdered his ex-girlfriend, Ashley Mead, in their apartment and transported the body to his family’s home in Louisiana, where he proceeded to dismember it. He then drove to Oklahoma and scattered evidence.

A violent confrontation over an alleged inappropriate comment leads to one man's death in Tampa, Florida.

Caught in a dangerous love triangle, 19-year-old Rachel Wade stabbed 17-year-old Sarah Ludemann over Joshua Camacho.

In 2010 in Pensacola, Florida, 19-year-old Audreanna Zimmerman visited the mobile home of 16-year-old Britnee Miller in an attempt to `patch things up' following a physical altercation between the two. Her visit turned out to be a deadly mistake.

In February 2009, Joshua Fulgham and Emilia Carr forced Heather Strong, Fulgham's wife, to sign a document granting full custody of her children to Fulgham, then proceeded to suffocate her to death. The murder was thought to be motivated by jealousy.

At the age of just 17, Christine Paolilla and her drug-addicted boyfriend took the lives of four people including two of her friends in a horrific, jealousy-fuelled attack, which became known as the Clear Lake Murders.

21-year-old Tawnee Baird and her girlfriend of 5 years, Victoria Ashley Mendoza, were driving home in Utah in the early hours of the morning when a fight broke out between the two and Mendoza stabbed Baird 46 times.

The chilling story of 15-year-old Seath Jackson, lured to a brutal death by his ex-girlfriend Amber Wright who then helped to conceal the murder.

When James Barry breaks up with his girlfriend Melanie Eam in 2016, she retaliates by cruelly snatching his life away.

Bianca was stabbed to death by Brandon Clark, after they went to a concert together. Brandon then cruelly shared videos, as well as photos of her dead body on social media.