Mosby Not Guilty by Reason of Insanity

Jessie Dean Mosby, 37, who was charged with first-degree murder for shooting and killing his own mother, was found to be not guilty by reason of insanity Thursday in Sequoyah County District Court in Sallisaw.

District Judge Jeff Payton ordered Mosby be sent to the Oklahoma Forensic Center in Vinita where he will most likely spend the remainder of his life, said his court-appointed attorney Jeff Jones of Stilwell.

Mosby shot and killed his mother, Karen Gregg, on the night of March 2, 2015, on Ruth Street in Sallisaw.

According to an affidavit by Shawn Ward, Oklahoma State Bureau of Investigation (OSBI) special agent, Mosby allegedly shot his mother at about 11:40 p.m. March 2, 2015, with one shot to the head. Ward reported officers were dispatched to a vehicle sitting in the roadway on Ruth Street in Sallisaw. In the vehicle they found Karen Gregg, dead, sitting in the driver's seat. She had a single shot to her head, and officers found a single bullet hole in the rear passenger side glass.

Jones said, “It’s a sad, sad deal. He thought his mother was a demon.”

Jones said Mosby apparently did not know what he did.

“At the jail he kept telling officers he needed to call his mother. Her car had tinted windows, and he just shot at it randomly. Unfortunately the shot hit her in the head and killed her,” Jones said.

Jones said two doctors, one for the state and one for the defense, testified at Thursday’s hearing that Mosby had a long-term mental illness and has been ill since the age of 12 when he was diagnosed as a paranoid schizophrenic. He has been heavily medicated since the shooting, Jones said.

“He has been on medications most of his life,” Jones said.

Jones explained that at the time of the shooting Mosby had been without his psychotropic drugs. He went to a local health clinic and asked for the drugs, which were denied. The drugs were prescribed after a second visit, but proved to be too expensive.

“At that time they cost $1,000 and his mother couldn’t afford them,” Jones said. “And he continued to get worse and worse.”

Jones said, “It was a terrible mistake by the state and everyone else. It is a sad, sad deal.”

Jones said Mosby was determined to be a danger to the public and was ordered to the forensic center by Judge Payton. By law he will undergo a yearly review, and most likely be returned to the center.

Sally Maxwell, Senior News Director

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