SIR Mick Jagger narrowly escaped murder after an assassination attempt on his life was thwarted by a storm. A former special agent for the Federal Bureau Of Investigation (FBI) has revealed the infamous Hells Angels gang allegedly plotted to kill the Rolling Stones frontman following the Altamont Speedway Free Concert in 1969, where a teenager was killed. The motorcycle outlaws were said to have provided security for the British band at the gig, but after 18-year-old Meredith Hunter was stabbed and beaten to death by members of the group - in an attack captured by film cameras - Jagger reportedly vowed never to use the gang's services again. And now former FBI agent Mark Young as spoken out about the aftermath of the killing, insisting the Hells Angels set out to take revenge on the singer at his home in the Hamptons, New York - but their plans were ruined when their boat was swamped. He explains, "The Hells Angels were so angered by Jagger's treatment of them that they decided to kill him. A group of them took a boat and were all tooled up and planned to attack him from the sea. "They planned the attack from the sea so they could enter his property from the garden and avoid security at the front. The boat was hit by a storm and all of the men were thrown overboard. All survived and there was not said to have been any further attempt on Jagger's life."