Murderers & Their Mothers

At 14 years old, Daniel Bartlam killed his mother with a claw hammer then sought to cover his tracks by concocting a story that came straight from a soap opera.

With a sunny exterior, Jed Allen's case shook the world when he killed his mother, stepfather, and six year old half-sister. Experts examine the dysfunctional family of the Wolverine.

Dr. Harold Shipman was Britain's most prolific serial killer with at least 215 known victims. Did his upbringing turn him into a mass murderer?

Joachim Knychala, the Polish serial killer who earned the ghoulish nickname `Frankenstein', attacked his victims with an axe.

Dennis Nilsen murdered 15 young men in London during the late 70s and early 80s. What led this seemingly normal civil servant to kill for company?

Serial child-killer Robert Black preyed on young girls across the country. Black's biological mother left him shortly after his birth, while his foster mother neglected and physically abused him.

Poland's 'vampire' Leszek Pekalski murdered dozens of men, women, and children. Pekalski was subjected to violence and neglect by family.

Investigate the Sandy Hook incident, where Adam Lanza killed his mother before shooting 20 children dead at an elementary school.

Richard Kuklisnki was known as the 'Iceman' due to freezing his victims to mask their time of death, killing up to 100 people in 30 years.