A black ex-con who shared a prison cell with a reputed Ku Klux Klansman has invited government officials to search the KKK member's property for bodies from civil rights-era murders.

James Stern claims that his former cellmate Edgar Ray Killen gave him the deed to 40 acres of Mississippi land. Killen, imprisoned for the 1964 deaths of three civil rights workers, supposedly admitted to dozens of other murders while he and Stern were housed together at the MIssissippi State Penitentiary in Parchman.

Stern said that Killen, who is serving 60 years for manslaughter related to killing of Michael Schwerner, Andrew Goodman and James Chaney (later dramatized in the 1988 movie "Mississippi Burning"), "unexpectedly signed over the deed" to the land. Killen's lawyer, Robert Ratliff, told Fox News that his client denies signing away his rights to Stern, who was convicted of five counts of wire fraud in 2007..

Killen allegedly confessed that he was responsible for 32 other murders, according to Stern. The two shared a cell from August 2010 until Stern's parole last November.

"I spent one and a half years housed with Edgar Ray Killen, as I told you, he's confessed to many things, even his wife in phone conversations spoke to me of bush hogging the property, many days of covering up things in the pastures," Stern told WMC-TV in Jackson, Miss.

Stern has provided a copy of the deed that shows he used power of attorney to transfer the land on May 17 from Killen to a nonprofit controlled by Stern called Racial Reconciliation,. But Ratliff told Fox News that Killen is 87 years old and has a traumatic brain injury, leading people he meets in prison try to take advantage of him.

Stern said he was actually Killen's confidant and protector in prison when Killen was singled out by other inmates for abuse.

"When they were putting feces in his food, I was the one giving him my tray," Stern said at a news conference last week.

For his part, Stern said he was courteous and listened to Killen because he thought that may be the only way the world would find out the truth about Mississippi during the civil rights struggle. Stern alleges that Killen also gave him the rights to tell his life story in a book or movie.

Stern also filed a $6-million-lawsuit, claiming that Ratliff has slandered him.

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  • Edgar Ray Killen

    FILE - Reputed Ku Klux Klan leader Edgar Ray Killen, is shown in this June 20, 2005 file photograph taken in Philadelphia, Miss. James Stern, a black man who was a cellmate in a Mississippi prison with Killen, says that he gave him power of attorney while in prison and has taken control of 40 acres of Killen's land, with an acre to be set aside for a civil rights memorial at a Thursday, June 14, 2012 news conference in Jackson, Miss. Killen was convicted on June 21, 2005 _ exactly 41 years after Michael Schwerner, James Chaney and Andrew Goodman were killed. (AP Photo/Rogelio V. Solis, File)

  • James Stern

    FILE - In this June 14, 2012 file photograph, James Stern of Jackson, Miss., shows documents that allege reputed Ku Klux Klan leader Edgar Ray Killen gave him power of attorney while they were both interred at the Mississippi State Penitentiary. Stern filed a lawsuit Monday, June 18, 2012 in Hinds County, Miss., Circuit Court claiming Killen's lawyer Robert Ratliff hurt his reputation by denying that Killen gave Stern power of attorney. The former prisoner is also suing reputed Ku Klux Klansman Edgar Ray Killen and Killen's wife for slander and libel related to the land transfer and book and movie rights. (AP Photo/Rogelio V. Solis, File)

  • Price Killen

    FILE - In this Oct. 19, 1967 file photo, Neshoba County Sheriff Deputy Cecil Price holds a copy of the Meridian Star newspaper with Edgar Ray Killen as they await their verdicts in the murder trial of three civil rights workers, James Chaney, Andrew Goodman and Michael Schwerner in Meridian, Miss. Of the 18 defendants, Price was convicted on conspiracy charges along with six other defendants. Killen walked out of federal court in 1967 because the jury could not reach a verdict. But in 2005, the former Ku Klux Klansman and one-time Baptist preacher was convicted of manslaughter in the 1964 slayings. (AP Photo/Jack Thornell, File)

  • Chris Collins, Edgar Ray Killen, Mark Duncan

    FILE - In this Friday, Jan. 7, 2005 file photo, Edgar Ray Killen, center, stands as Neshoba County District Attorney Mark Duncan, right, reads the indictment charging him with murder in the 1964 slayings of three civil rights workers during his appearance in circuit court in Philadelphia, Miss. Public defender Chris Collins is at left. Killen walked out of federal court in 1967 because the jury could not reach a verdict, but in 2005, the former Ku Klux Klansman and one-time Baptist preacher was convicted of manslaughter in the killings of James Chaney, Andrew Goodman and Michael Schwerner. The trio of Freedom Summer workers had been investigating the burning of a black church near Philadelphia, Miss. (AP Photo/Rogelio Solis, File)

  • Edgar Ray Killen Sentenced For Civil Rights Workers Murders

    PHILADELPHIA, MS - JUNE 23: Betty Jo Killen returns to her seat after visiting briefly with her husband, Edgar Ray Killen, as he is being taken out of the courtroom where he was sentenced to 20-year terms on each of three counts of manslaughter for the 1964 slayings of three civil rights workers June 23, 2005 in Philadelphia, Mississippi. Killen , 80, was convicted on June 21 in the 1964 murders of civil rights activists Andrew Goodman, James Chaney and Michael Schwerner. He received three consecutive 20 year sentences for the murders. (Photo by Roelio Solis-Pool/Getty Images)

  • Edgar Ray Killen Sentenced For Civil Rights Workers Murders

    PHILADELPHIA, MS - JUNE 23: Edgar Ray Killen (R) speaks with his attorney James McIntyre prior to being sentenced to the maximum 60 years in prison for masterminding the 1964 slayings of three civil rights workers June 23, 2005 in Philadelphia, Mississippi. Killen , 80, was convicted on June 21 in the 1964 murders of civil rights activists Andrew Goodman, James Chaney and Michael Schwerner. He received three consecutive 20 year sentences for the murders. (Photo by Roelio Solis-Pool/Getty Images)

  • Edgar Ray Killen Sentenced For Civil Rights Workers Murders

    PHILADELPHIA, MS - JUNE 23: James McIntyre, the defense attorney for convicted Edgar Ray Killen, is escorted by SWAT team members following his client's sentence of three consecutive 20-year terms on June 23, 2005 in Philadelphia, Mississippi. Killen , 80, was convicted on June 21 in the 1964 murders of civil rights activists Andrew Goodman, James Chaney and Michael Schwerner. He received three consecutive 20 year sentences for the murders. (Photo by Marianne Todd/Getty Images)

  • Edgar Ray Killen Sentenced For Civil Rights Workers Murders

    PHILADELPHIA, MS - JUNE 23: Edgar Ray Killen is escorted int o the Neshoba County Courthouse before sentencing June 23, 2005 in Philadelphia, Mississippi. Killen , 80, was convicted on June 21, 2005 in the 1964 murders of civil rights activists Andrew Goodman, James Chaney and Michael Schwerner. He received three consecutive 20 year sentences for the murders. (Photo by Marianne Todd/Getty Images)

  • Edgar Ray Killen Sentenced For Civil Rights Workers Murders

    PHILADELPHIA, MS - JUNE 23: Edgar Ray Killen is escorted int o the Neshoba County Courthouse before sentencing June 23, 2005 in Philadelphia, Mississippi. Killen , 80, was convicted on June 21, 2005 in the 1964 murders of civil rights activists Andrew Goodman, James Chaney and Michael Schwerner. He received three consecutive 20 year sentences for the murders. (Photo by Marianne Todd/Getty Images)

  • Killen Convicted Of Manslaughter

    PHILADELPHIA, MS - JUNE 21: Rita Schwerner Bender, widow of slain civil rights worker, Michael Schwerner, is congratulated by an unidentified man moments with a hug moments after former Klansman, Edgar Ray Killen, was convicted of three counts of manslaughter for the 1964 deaths of three civil rights workers, including Schwerner, June 21, 2005, in Philadelphia, Mississippi. The 80-year-old former Ku Klux Klansman was convicted of manslaughter in the slayings of three civil rights workers. (Photo by Rogelio Solis-Pool/Getty Images)

  • Edgar Ray Killen Found Guilty Of Manslaughter In 1964 Civil Rights Murders

    PHILADELPHIA, MS - JUNE 21: Ben Chaney, the brother of slain civil rights worker James Chaney, smiles after a jury convicted his killer, Edgar Ray Killen of manslaughter in the deaths of Chaney, Andrew Goodman and Michael Schwerner June 21, 2005 in Philadelphia, Mississippi. The guity verdict comes on the 41st anniversary of the Klan killings. (Photo by Marianne Todd/Getty Images)

  • Trial of Klansman For 1964 Murders Continues

    PHILADELPHIA, MS - JUNE 20: Heavily guarded Edgar Ray Killen, 80, is escorted into the Neshoba County Courthouse by his stepson, Jerry Edwards, on June 20, 2005 in Philadelphia, Mississippi. Killen is on trial for the 1964 slayings of civil rights workers James Chaney, Andrew Goodman and Micael Schwerner in a case that came to be known as Mississippi Burning. (Photo by Marianne Todd/Getty Images)

  • FBI Releases Evidence Slaying Of Civil Rights Workers

    PHILADELPHIA, MS - 1964: In this picture released by the FBI and the State of Mississippi Attorney General's Office, Edgar Ray Killen is seen June, 1964 in Philadelphia, Mississippi. The photograph was presented into evidence during the trial of Edgar Ray Killen, who is charged with the 1964 deaths of three civil rights workers. (Photo by FBI/State of Mississippi Attorney General's Office via Getty Images)