A small, tight-knit southeast Kentucky community has been reeling after their sheriff was arrested for the killing of a prominent district judge in his chambers Thursday – spurring residents to wonder what could have triggered the shooting and prompting calls for better courthouse security.

It’s just so sad. I just hate it,” said Mike Watts, the Letcher County circuit court clerk. “Both of them are friends of mine. I’ve worked with both of them for years.”

A Kentucky State Police spokesman said shots were fired inside the Letcher County Courthouse at 2:55 p.m. after an argument between Stines and Mullins. Mullins was pronounced dead at the scene. Here's a look at a few statements about the shooting on social media.