A whirlwind romance becomes a perfect storm as accusations spin out of control. When one of them ends up dead, the question in court is whether it was self-defence or self-interest that's to blame.

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.

When word of her sisters disappearance on vacation reaches Ruth Hoffman, it takes her just one hour to sift through her correspondence to break open the case.

Thirty-one and newly single, Erin heads out to a basketball game with her best friend. A tornado hits Kansas that night but it's Erin's murder that destroys her family.

A gunman kills a college student, leading investigators to connect the dots between a mystery man, a confiscated race car and an unthinkable betrayal.

In broad daylight on a busy Woolwich street on 22nd May 2013, serving soldier Fusilier Lee Rigby was attacked and murdered by Islamic extremists Michael Adebolajo and Michael Adebowale.

Robbie Coltranes Critical Evidence

On 12th May 2014 a human torso was discovered in a suitcase during routine maintenance work on a Birmingham canal. With no useable DNA and no other body parts, the case initially seemed impossible to crack.

In Mobile, two men are killed after their car is sprayed with bullets on the highway, leading detectives across the country in search of answers.

A young couple is gunned down in broad daylight in their driveway in front of their toddler.

Murder In The 21st

The community of Macon, GA is gripped in a wave of terror when a beautiful law student disappears from her apartment complex.

Geeta Aulakh left work on the 16th November 2009 and set out to collect her children from the childminders in a London suburb. But as she turned the corner, metres from her destination, something tragic happened...

Darren McKie, his wife Leanne and their children had a seemingly perfect life. Both Darren and Leanne were successful police officers and they lived in affluent Cheshire, but it was a lifestyle built on deceit and debt.

During a violent home invasion in San Diego, a masked intruder shoots criminal defense lawyer Tim MacNeil in the head. And though investigators suspect a connection to his work, a composite sketch ultimately reveals a sinister plot closer to home.

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.

Newlyweds Kylen and Crystal play pool with friends but worry about a strange man who had howled at them near their campsite days before. They leave the bar, only to vanish into the woods.

Meet, Mary, Murder

Alice Farquharson was the centre of her family. Her husband Keith was a police officer with a chequered history of misogyny and extramarital affairs. When Alice unexpectedly died, her family and police were shocked to discover the cause.

In a quiet suburb of Los Angeles in 1988, Hollywood camera assistant Robert Samuels is brutally ambushed and shot in the back of the head. The investigation leads to several suspects with links to Robert's widow.

Outside the small town of Verdigre, Nebraska, a domestic altercation ends in a shooting death.

Green Eyed Killers

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 word of her sisters disappearance on vacation reaches Ruth Hoffman, it takes her just one hour to sift through her correspondence to break open the case.

During a violent home invasion in San Diego, a masked intruder shoots criminal defense lawyer Tim MacNeil in the head. And though investigators suspect a connection to his work, a composite sketch ultimately reveals a sinister plot closer to home.

Brian Redding, 32, informs local police that he has found his 16-year-old girlfriend, Cypress Noonan, dead in their room at the Forest Motel in Ridgeland, South Carolina.

After The First 48

In Tulsa, a party becomes the scene of a murder. For investigators and prosecutors, the case is riding on two accomplices betraying their friends, despite the risks.