Former Illinois cop Sean Grayson dies in prison while serving sentence for murder of Sonya Massey inside her home after she called 911 for help
Sean Grayson, the former Illinois sheriff's deputy convicted of murdering Sonya Massey, has died in prison just six months into his 20-year sentence. He had been suffering from colon cancer, which he claimed had progressed to a terminal stage, though a review board had denied his request for compassionate release only last month. The case had drawn national attention as another example of a fatal police shooting of a black woman during what began as a routine welfare check.
Massey, 36, a single mother of two, called 911 in July 2024 believing a prowler was outside her Springfield home. After Grayson and a colleague found no intruder and entered to question her, Grayson drew his weapon over a pot of boiling water on the stove, threatened to shoot her, and then fired three times as she apologised and dropped to the floor, killing her with a shot to the head. He was convicted of second-degree murder in October 2025 and given the maximum sentence in January, and although his lawyers argued his cancer had spread to his liver and lungs, prosecutors successfully opposed his early release, arguing he already had cancer when he committed the killing.
- Ex-deputy Sean Grayson dies in prison serving sentence for Sonya Massey's murder
- Died of cancer six months into 20-year sentence, after release request denied
- Grayson shot Massey in her home in 2024 after she called 911 for help
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Sean Grayson was a sheriff's deputy in Illinois who shot and killed Sonya Massey, a 36-year-old single mother, inside her own home in July 2024. Massey had called 911 herself, believing there was a prowler outside, and Grayson was one of the officers who responded. The case became a high-profile example of police violence against black women in America, particularly because Massey had sought help rather than being involved in any crime.
Body-worn camera footage showed Grayson threatening to shoot Massey over a pot of boiling water on her stove before firing three times as she apologised and ducked down, killing her with a shot to the head. He was convicted of second-degree murder in October 2025 and sentenced to the maximum term of 20 years in prison the following January.
Grayson had colon cancer, and his lawyers said it had spread to other organs, but a review board rejected his bid for early release only last month after prosecutors argued he already had the illness when he killed Massey. His death in custody, just six months into his sentence, closes the criminal case but leaves unresolved questions about accountability and oversight in policing that the case had come to symbolise.