McAlester News-Capital, McAlester, OK

Local News

March 10, 2013

Murderer set for trial in Pittsburg County

McALESTER — A convicted murder from the Oklahoma State Penitentiary is set to go to trial in Pittsburg County to face a charge of manslaughter in the stabbing death of another OSP inmate.

Gregory S. Thompson, 40, was originally charged in Pittsburg County District Court in September 2010 with first degree murder after he allegedly stabbed fellow inmate Daniel L. Clayton, 38, on Sept. 3, 2009.

In 2011, the charge against Thompson was reduced to first degree manslaughter. Thompson is also facing a felony charge of possession of contraband (a knife) by an inmate.

According to court records, officers at OSP were conducting an inmate count at 10:05 p.m. on Sept. 3, 2009, when they “saw inmate Daniel Clayton lying on the floor of the cell bloody and unresponsive ... (and) saw inmate Gregory Thompson standing over Daniel Clayton wiping his hands.”

Thompson allegedly then handed officers a homemade knife while saying, “it isn’t what it looks like I had to defend myself,” according to court records. Thompson was removed from the cell by correctional officers and taken to the showers while Clayton was placed on a stretcher and rushed over to the medical unit, court records state.

A nurse in OSP’s medical unit checked Clayton’s vital signs and could not find a pulse. Then, a doctor at OSP pronounced Clayton’s death at 11 p.m. At the time of his death, Clayton was serving a 20-year sentence for a Comanche County first degree robbery conviction. Clayton had also served time for multiple prior convictions of burglary, concealing stolen property and possession of contraband in a penal institution.

Thompson is currently serving a life sentence without the possibility of parole for a 2003 Oklahoma County first degree murder conviction. He is set to go to trial March 12. If convicted, he is facing up to an additional life sentence on each count.

Contact Rachel Petersen at rpetersen@mcalesternews.com.

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