A former deputy has died while serving a prison sentence. Sean Grayson was convicted of killing Sonya Massey and was given a 20-year sentence.

Details of his death are not provided, but it is known that he was in prison at the time. Grayson was a former Illinois deputy, indicating that his conviction and sentencing were related to his actions in that role.

Further information about Sean Grayson's death and conviction can be found through the source publication.