Former Illinois Deputy Convicted in Slaying Dies in Prison
Sean Grayson, a former Illinois sheriff's deputy convicted of killing Sonya Massey, has died in prison.

San Francisco Oakland San Jose, CA, August 24, 2026 —
Sean Grayson, a former Illinois sheriff’s deputy who was convicted of the killing of Sonya Massey, has died while incarcerated.
Details regarding the date and cause of Grayson’s death have not been provided. He was serving a prison sentence following his conviction in connection with Massey’s death.
The circumstances surrounding Sonya Massey’s death and the subsequent conviction of Sean Grayson were central to the legal proceedings. Further information regarding the timeline of the conviction and the sentencing is not available in the provided summary.
Story summarized from the original created by KGO-TVWebTeam@email.disney.com(KGO-TV San Francisco) on abc7news.com, see more information here.
Media gallery
