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In 2003, Phillip bludgeoned his friend Derek to death, motivated by greed and money. Hegarty's brutality finally earned him a whole-life sentence.

The Mum Who Never Came Home: After Michelle Gunshon disappeared, police found CCTV footage showing her with a mystery man. They tracked him down, but where was she.

The tragic story of 24-year-old Lee Irving, a young man with learning difficulties lured to his death by four people he thought were his friends.

The 2002 murders of Holly Wells and Jessica Chapman horrified and shook the nation. Explore how forensic science helped find their killer.

In 2012, April Jones disappeared from outside her home in Wales, never to be seen again. Her abductor, and murderer, was found to be Mark Bridger.