Sean Grayson, the former Illinois sheriff's deputy convicted of killing Sonya Massey inside her own home, has died in custody at just 32-only weeks after officials refused to release him on medical grounds.
Defense attorney Daniel Fultz confirmed that Grayson died around noon Sunday, August 23, while serving a 20-year prison sentence. The Illinois Department of Corrections confirmed that he died while being held at an undisclosed facility outside Illinois but did not release an official cause or further details.
Grayson had been fighting advanced cancer. Diagnosed with Stage 3 colon cancer in 2023, his attorneys later said the disease had progressed to Stage 4 and spread to his rectum, liver and lungs. Sources told TMZ that colon cancer was the underlying cause of his death, although authorities have not independently announced an official cause.
The timing is striking. Grayson had applied for early medical release, arguing that his condition was terminal. On July 31-just over three weeks before his death-the Illinois Prisoner Review Board unanimously rejected that application in a 3-0 decision, leaving him behind bars to continue serving the maximum sentence.
Grayson had completed only about six months of that sentence. A jury convicted him of second-degree murder in October 2025 for the July 6, 2024, shooting of Massey, a 36-year-old Black mother who had called 911 because she feared a prowler was outside her Springfield-area home.
Instead of receiving protection, Massey was shot in her kitchen by one of the deputies sent to help her. Body-camera footage showed the confrontation escalating after Grayson instructed her to move a pot of hot water from the stove. When Massey said, "I rebuke you in the name of Jesus," Grayson drew his weapon, threatened her and shot her three times, including in the face, as she crouched behind the counter.
Grayson maintained that he feared Massey would throw the water at him. However, the other responding deputy testified that he did not regard her as a threat. The jury rejected the original first-degree murder charge but found Grayson guilty of second-degree murder, and a judge sentenced him to the maximum 20 years in January.
Massey's killing ignited nationwide outrage, particularly because she had been unarmed and had summoned police herself. Her final invocation of Jesus became one of the most haunting elements of the footage and a rallying cry for those demanding justice and reform.
Her death ultimately contributed to the Sonya Massey Act, which strengthened background-check requirements for Illinois law-enforcement hiring. The Justice Department also pursued reforms involving Sangamon County policing and its response to people experiencing behavioral-health crises. Massey's family previously reached a $10 million settlement with the county.
Following Grayson's death, attorneys Ben Crump and Antonio Romanucci issued a measured statement on behalf of Massey's family.
"Sean Grayson's death in custody from cancer does not bring Sonya back," they said. "We wish his family prayers of peace, as we do for all who grieve a loved one. Sonya's family knows that pain all too well and will grieve her loss the rest of their days."
Grayson's death closes the prison chapter with startling speed, but it does not erase the moment that brought him there: a frightened mother called police for protection, invoked the name of Jesus in her kitchen and was killed by the deputy who answered her plea for help.
