A former Illinois sheriff's deputy died in prison Sunday while serving time for fatally shooting Sonya Massey after she called 911 about a suspected prowler in her home, his lawyer said.
Sean Grayson, 32, died around noon, his defense lawyer Daniel Fultz told NBC News. He had served six months of his 20-year maximum sentence for second-degree murder in the 2024 slaying of 36-year-old Massey.