In the Dirty Heads song, Lay Me Down, the sheriffs go after the protagonists, who are trying to leave this location. They are described as "trying to shoot on sight". It is shown in the video that this guy follows the protagonists and has several deputies with guns. His nickname might be "Mean Billy Green"; as it is heard in another part of the song.
"The safe was nearly empty and they were nearly free/ But were seen by the good eye of the mean Billy Green/ and he screamed at the lop of his lungs there on the run/ It's the two outsiders grab your horses and your guns"