Sean Grayson, a former Sangamon County deputy convicted of fatally shooting Sonya Massey, has died while serving his prison sentence. Reports state that he passed away during a battle with cancer. Grayson was 32 years old at the time of his death, and his conviction followed an incident where Massey called 911 to report a potential intruder in her home, only to be shot by Grayson. His attorney has confirmed the news, and a spokesperson for the Massey family has also commented on his passing.