[Iscariot]

I thought it was pretty good, it kept me interested and I wanted to keep reading. A few things though.
One, I think there is a little back and forth reiteration in the beginning. You mention his wife's death A LOT, and I understand that is the point of the story, but I still feel it is brought up in short succession quite often at least in the beginning. Also the horse being refered to as "big horse" and "big black Horse" quite often in the beginning. What breed is it a gelding, courser, charger, what? Something to vary up word choice.
Two, I think it is really inappropriate for a man so bent on revenge that he has remembered the exact length of time he has been huntering them would ask them to surrender. Maybe replace the ultimatum with a declaration of execution such as "Hello. My name is Inigo Montoya. You killed my father. Prepare to die." You know some monologue where he tells them who he is and why he is going to kill them. Also in this area if Washburn is the leader and the worst of the lot, he still acts incredibaly meek when confronted.
Lastly, there are two point in the last two paragraphs where you only attribute Hank with three kills though you describe him killing all four of them.