Investigators are searching for a motive after a Kentucky sheriff was arrested for allegedly gunning down a judge in his chambers,

The governor said the judge was fatally shot in his chambers, and police said the sheriff opened fire following an argument. State police say District Judge Kevin Mullins was hit multiple times in the shooting.

As residents of a small town in southeast Kentucky mourn the loss of a prominent district judge, they’re looking for answers about the argument that authorities say led up to his killing inside the judge’s chambers and the sheriff’s arrest in his death.