Murder of Kyle Dinkheller
On January 12, 1998, Andrew Brannan, a 49-year-old Vietnam War veteran, fatally shot 22-year-old deputy sheriff Kyle Dinkheller after a traffic stop in Laurens County, Georgia. Stopped for speeding, the two men exited their vehicles and greeted each other normally, but Brannan became belligerent after Dinkheller told him to take his hands out of his pockets, sparking a verbal confrontation and subsequently a gunfight that ended with Brannan fatally shooting Dinkheller.
Source: Wikipedia — Murder of Kyle Dinkheller (CC BY-SA 4.0)