Lee Harvey Oswald's brother is taking legal action after the presidential assassin's original coffin was sold at an auction.
Robert Edward Lee Oswald said he thought the water-damaged wooden coffin had been destroyed after Lee Harvey Oswald's body was exhumed from a Fort Worth, Texas, cemetery in 1981 amid conspiracy theories surrounding the death of President John F Kennedy. Another coffin was used for the reburial.
The lawsuit filed last week in Fort Worth accuses Baumgardner Funeral Home of invasion of privacy, negligence, gross negligence and breach of contract.
Robert Oswald, 76, of Wichita Falls, is seeking unspecified damages, including the proceeds of last month's auction that raked in at least 160,000 dollars (£103,000) for various items, including Lee Harvey Oswald's death certificate and porcelain embalming table.
Oswald was shot dead at a Dallas police station two days after Kennedy was assassinated in 1963. He was never put on trial, but authorities concluded he was the killer.
An anonymous bidder bought the coffin for nearly 87,500 dollars (£56,450) after a spirited round of bidding that Nate D Sanders Auctions of Santa Monica, California, said continued two hours past the original closing deadline.
Neither the Fort Worth funeral home nor Nate D Sanders Auctions immediately returned calls for comment.
Robert Oswald said last month that he had no plans to sell the coffin. A copy of his original undertaker's receipt shows he paid 710 dollars - including 300 dollars for the coffin and 25 dollars for flowers in 1963.
"The funeral items sold were of a personal and sentimental value. The damages suffered by (Robert Oswald) as a result of the circulation of these confidential items far outweighs the market value brought at auction," Mr Oswald said in the lawsuit.
"(The funeral home) purposefully concealed their possession and the very existence of the funeral home items for many years . . . and kept the casket so as to profit from it at a later date."
Mr Oswald tried to stop the sale after learning about it through media reports, according to the lawsuit.
He gave the auction house's lawyers a copy of documents showing he owned the items, but the sale was held anyway, the suit says.
Mr Oswald is also upset that pictures of his brother's body in the coffin were shown as part of the auction's publicity.
Allen Baumgardner, the funeral home's owner, said previously that he kept the coffin in a storage room at the mortuary, saying he hoped someone interested in its historical significance would buy it.