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Sean Grayson, the ex-Illinois sheriff’s deputy who was sentenced to two decades in prison for killing single mom Sonya Massey after she called 911 for help, has died, according to his attorney.
His defense attorney, Daniel Fultz, confirmed to The Post that Grayson, 32, died early Sunday, August 23.
The former deputy had been diagnosed with colon cancer before the 2024 shooting, and in January, his attorney noted that his cancer had advanced to his liver and lungs.
A three-member Illinois Prisoner Review Board voted unanimously in July to deny Grayson’s application for an early medical release. Fultz was unable to comment on whether Grayson’s death was related to his cancer diagnosis.
He was six months into his 20-year second-degree murder sentence for fatally sho0ting Massey in her Springfield, Illinois, home on July 6, 2024, after she called 911 about a possible prowler.



