Factual crime documentary telling the shocking stories of murderers who took the lives of people they had never met before, asking what led them to kill a complete stranger.

14-year-old Jermaine Cools is walking home when a fight breaks out involving an older boy brandishing a huge machete.

The story of the murder of 18-year-old Conner Marshall, who was enjoying a holiday with friends when he was approached late at night by a stranger.

As Mikey Rainsford gets ready to meet his girlfriend, he's unaware that two strangers are lurking outside in the darkness out for revenge.

As 13-year-old Lauren Landavoza walks home from school, a 22-year-old loner is getting ready to ensure that if he can't have her, no one can.

Things end in tragedy when 27-year-old Michael Hoolickin steps in to defend a woman being hit by her brother

In 1984,12-year-old Jonelle Matthews is dropped home following a Christmas performance. But when her father returns, Jonelle isn't there

Teenager Hunter Smith starts a new life in order to provide for his young daughter, but his dreams are cruelly dashed while hitchhiking in the US

The shocking case of a woman stabbed more than 70 times by a teenager who who researched murder and serial killers on the internet