Investigation Discovery Today

The Pennsylvania family decimated when masked men ambushed it at home with guns and crude bombs, killing a mother and her daughter

Buying goods from home

Buying goods from home

When a racetrack horse groom is found dead in her dorm, her death is ruled a suicide. Years later, a tip-off sent investigators on a 1,400-mile hunt for a killer

The murder of 16-year-old Bristol student Becky Watts. When she vanished, suspicions fell on her step-brother Nathan Matthews and his partner Shauna Hoare

When April Barber was murdered at a remote beauty spot, her husband Justin said he tried to stop the killer and even appealed for help on TV. Experts analyse his deception

The murder of 57-year-old cellist Janine Sutphen, whose body was found floating in a lake four months after she was reported missing in January 2003

The death of 19-year-old Devon Guzman, whose dead body was found in her car

The drowning of a vivacious 33-year-old in the middle of a crowded lake. The investigation untangled a dark, nefarious past that included theft and multiple murders

In 2015, a hunter comes across a woman in the woods who has been murdered. Detectives unravel a web of dark secrets and lies that lead to a twisted killer

A case in which a college freshman was shot in her family's home. The victim's older sister worked closely with investigators to uncover the truth and put the killers behind bars

After one of her daughters was murdered, a mother vowed to find out the truth. As more evidence was uncovered, she realised the killer may be lurking nearby

The 1998 murder of 19-year-old cheerleader Dominique 'Nicky' Hurd, who was studying to be a doctor at the University of Arkansas

The case of Jacey McWilliams who, reeling from a recent break-up, became smitten with a new man. However, a date in the Florida woods ran horrifically off-course

A case in which a student was found strangled and stabbed in her own home. Family, friends and the town of Valley City, North Dakota, helped police identify her killer

The case of bride-to-be Patricia Richmond, who was murdered in her future in-laws' home in Colorado. Who would have taken this young woman's life in such a brutal way?

A 999 call from a teenager sparks a race against time for Nadiene and volunteer Matt. When confronted with an aggressive man, the pair are forced to hit their emergency buttons

In Florida, an argument escalates into a double kidnapping, spurring a police chase. The suspect uses a hostage as a human shield and escapes into a nearby forest

The daytime shooting of an Ohio man confounds Silverton police until security video surfaces. Was a broken heart at the centre of this violent act

Sixteen-year-old Joshua Davies was sentenced to 14 years in jail for the murder of his on-off girlfriend, Rebecca Aylward. Why did kill - and only confess to it in prison?

The case of 19-year-old Sean McHugh, who in 2013 was stabbed dead in the back of a laundrette in Anfield, Liverpool after being cornered by five youths, the eldest of who was 15

The 1998 murder of 19-year-old cheerleader Dominique 'Nicky' Hurd, who was studying to be a doctor at the University of Arkansas

The case of Jacey McWilliams who, reeling from a recent break-up, became smitten with a new man. However, a date in the Florida woods ran horrifically off-course

A case in which a student was found strangled and stabbed in her own home. Family, friends and the town of Valley City, North Dakota, helped police identify her killer

The case of bride-to-be Patricia Richmond, who was murdered in her future in-laws' home in Colorado. Who would have taken this young woman's life in such a brutal way?

The 1998 murder of 19-year-old cheerleader Dominique 'Nicky' Hurd, who was studying to be a doctor at the University of Arkansas