Sean Grayson, a former Sangamon County deputy who was convicted in the killing of Sonya Massey, has died while incarcerated. His attorney confirmed the death to multiple news outlets.
Grayson had been found guilty of fatally shooting Sonya Massey. The circumstances surrounding his death in prison were not immediately available.
News organizations, including CBS News and USA Today, reported the death, citing Grayson's lawyer. This is a developing story and will be updated as details emerge.