Tulsa Reserve Deputy Robert Bates

Bates was found guilty last month of second-degree murder for the April 2, 2015 gun sting operation in Tulsa, Oklahoma that left Harris dead.

A 73-year-old Tulsa, Oklahoma reserve deputy who killed a man earlier this month when he fired a gun instead of a Taser was the subject of an investigation over questions about his training and conduct, CBS News has learned. Robert Bates has pleaded not guilty to second-degree manslaughter charges in the death of Eric Harris, saying […]