Serial killer Kiernan Kelly confessed to pushing 18 people onto an underground train track in London to their deaths in the 1970s, and he got away with it because the police covered his crimes.

His confession came during an interrogation with former detective of Scotland Yard Geoff Platt after he had strangled his cellmate William Boyd to death for snoring in 1984. The serial killer claimed that the police reported the cases as suicides to prevent mass panic. Mr. Platt has written a book called ‘The London Underground Serial Killer’ based on his confession.

The British Transport Police made the following statement in regards to his confession, “We are aware of the claims in Mr. Platt’s book, but given the passage of time since they are alleged to have been committed, these would prove difficult to substantiate without further evidence. We would invite Mr. Platt to submit any information he has on these matters to us.”

Kelly died in prison after he was sentenced to life imprisonment for the murder of William Boyd and another murder.