Authorities say Letcher County Sheriff Shawn M. Stines, 43, shot District Judge Kevin Mullins, 54, on Thursday afternoon after an argument inside the Letcher County Courthouse in Whitesburg, Kentucky. Here's what to know about the shooting.

Letcher County Sheriff Shawn M. Stines, 43, was taken into custody at the scene without incident, police said. He was charged with one count of first-degree murder.

A judge in a rural Kentucky county was shot and killed in his courthouse chambers Thursday, and the local sheriff was charged with murder, police said.