A sheriff has been arrested and charged with the murder of a district judge in rural Whitesburg, Kentucky. District Judge Kevin Mullins, 54, died after being shot multiple times, state police said, according to CNN. Letcher County Sheriff Shawn Stines was charged with first-degree murder in the case. Other than the fact that an argument took place between the two men, there has been no information released about the motive for the shooting as the investigation is still ongoing as of Friday morning. The shooting took place at about 3 p.m. Thursday, according to The Mountain Eagle. Stines walked…