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

Details of his death are not provided here, but the source has more information on the circumstances. Grayson's conviction was for the killing of Sonya Massey, and he was serving his sentence at the time of his death.

Further information on Sean Grayson's death can be found through the source publication, which reported on his conviction and imprisonment as well as his recent passing.