Sean Grayson, former deputy convicted of killing Sonya Massey, dies in prison, lawyer says

Sean Grayson, a former Illinois sheriff's deputy whose fatal shooting of Sonya Massey inside her home became a flashpoint over police use of force, died Sunday while serving a 20-year prison sentence.

Sean Grayson, a former Illinois sheriff's deputy whose fatal shooting of Sonya Massey inside her home became a flashpoint over police use of force, died Sunday while serving a 20-year prison sentence.