British author Terry Rawlings has revisited the death of Rolling Stones star Brian Jones for an updated version of his acclaimed 1994 book Brian Jones: Who Killed Christopher Robin?.

Rawlings insisted the Stones co-founder was murdered 20 years ago, and now he's offering up new evidence he has uncovered since the original book's release to further prove his claims.

The updated edition features an interview with former Rolling Stones road manager Tom Keylock, in which he reveals a contractor who had fallen out with the rock star confessed to killing Jones.

The late Keylock, who died in 2009, claims builder Frank Thorogood admitted to killing Jones on his deathbed in 1993.

The rocker was found drowned in his swimming pool in July, 1969.

In a new interview with Britain's Mojo magazine, Rawlings says, "Brian was definitely murdered and there was a cover-up... It's not a crackpot theory; it's what happened."

Jones' death was last reviewed by police in 2009 following the investigation of hundreds of documents pertaining to the incident by a British journalist, but the case remains officially closed. The original coroner's report stated "death by misadventure" and noted his liver and heart were heavily enlarged by drug and alcohol abuse.