Rise (Fall?) of the West
Johnathan is the leader of the Stubbs Gang. Known for hiding out in the mountains west of Laramie and targeting the Union Pacific rail line that runs there (http://www.youtube.com/watch?v=vzsRKE17Y_w), he is a harsh man with little patience for betrayal.
Leighton stole his new witch /and/ his woman (of course, they were the same woman). Also, his horses. He’ll pay for it, oh yes he will.