On 18 January 1976, 15-year-old Peter Watts from Colwyn Bay, North Wales, left home telling his family he was going out. The next day he was found critically injured in an underpass near Euston Station in London — over 250 miles away.

He died shortly after in hospital. His death was ruled a murder, but nearly 50 years later, no one has ever been charged. How did a Welsh schoolboy end up dying alone in a London underpass? Why was there so little evidence? And why has the case remained unsolved for decades?

In this deep-dive documentary, we examine the full timeline, the strange circumstances surrounding his death, the police investigation, the theories involving abduction and foul play, and why this haunting case continues to trouble investigators and the public.

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Crimes That Haunt Us – respectful, in-depth documentaries on the UK’s most disturbing unsolved cases.

(00:00) The Haunting Case of Peter Watts

(00:43) Who Was Peter Watts?

(03:31) The Day of the Murder

(4:34) Peter Leaves Home

(5:21) Euston Station

(7:45) Peter is Found Dying in London

(10:10) Peter is Rushed to Hospital

(14:06) The Post Mortem

(15:56) The Joint Police Investigation

(18:10) The Inquest Opens

(24:37) A Bombshell Witness Claim