John Lennon's killer Mark Chapman attempted to sell an album the former beatle signed for him hours before he shot the star dead.
The 53-year-old asked Lennon to sign the Double Fantasy LP before fatally shooting him outside his New York home in December 1980.
And Chapman tried to sell the disc to a memorabilia specialist from New Jersey five years later.
In a series of letters printed by British newspaper the Evening Standard, it is claimed the record was bought in 1999 by an anonymous American.
In 2004 it went up for sale again, priced at $548,000 (GBP274,000), through a US memorabilia website.
Chapman is serving 20-years-to-life at Attica Correctional Facility in New York.