Mass Murderers and Spree Killers commit unspeakable explosive acts of violence against other people – often strangers, but sometimes their own family. Such killers use a range of weapons to achieve their goals. Mass shootings are rare in the UK but they have a massive impact, often leaving dozens of innocent people dead or injured.

Professor Jackson has studied Mass Murder cases for nearly 15 years and his encyclopaedic case knowledge explores if mass killings are caused by personality types, narcissistic thoughts, sexual frustration, loneliness, military fantasies, or a desire to be infamous and known for such cruelty.

In this show he conducts Psychological Autopsies on the mass killers responsible for the Hungerford & Dunblane shootings and the infamous Rothbury manhunt, along with cases including the Heinz baby food poisoner, the Tesco bomber, and numerous attacks by ‘deranged’ spree killers.