Sean Grayson, convicted in killing of Sonya Massey, dies in prison, attorney says
Grayson, 32, was found guilty last October of second-degree murder for the shooting of Sonya Massey and was serving a 20-year sentence.
Updated on: August 23, 2026 / 7:06 PM EDT / CBS Chicago
Sean Grayson, the former Sangamon County Sheriff's deputy convicted of murdering Sonya Massey in her home in 2024, died on Sunday.
Attorney Daniel L. Fultz, who served as Grayson's attorney, confirmed the news on Sunday.
Grayson had been battling Stage 4 colon cancer, for which he was undergoing treatment. It is unclear if that was the cause of death.
Last month, the Illinois Prisoner Review Board rejected Grayson's medical release request and ordered him to remain in prison, despite the application citing advanced colon cancer.