Newly released surveillance footage shows when a Kentucky sheriff pointed his gun at a judge's head before allegedly shooting and killing him.

The pair appeared to be having a heated exchange before the sheriff pulled out his gun and pointed it at the judge’s head, the startling video shows.

District Judge Kevin Mullins was shot and killed in his courthouse chambers by longtime friend Sheriff Shawn Stines.

Shawn Stines, 43, who stands accused of first-degree murder for the killing, faced the family of state court judge Kevin ...