Richard Wyler is The Bounty Killer. Tomas Milian is the killer bounty.
Jose seems to defer to their sentiment by refusing to kill Chilson, but that reprieve only gives him ample time to torture his enemy. Meanwhile, his gang converges on the village as a new base of operations. Requiring secrecy, they murder a young man, no friend of Chilson, who decides to leave town. Needing funds, they finally decide to loot the place, while Jose mockingly promises his victims that he'll pay them back after robbing a bank in Mexico. By then, fortunately, Eden has wised up enough to free Chilson at night so the bounty killer can come storming back in to annihilate the Gomez gang, with belated help from the community.
Milian torments Wyler until Halina Zalewska can't stands no more
Judging from Videoasia's halfway decent widescreen copy of the film (apparently taken from a Spanish DVD with a English dub option) in its The Fast, the Saved and the Damned collection, Bounty Killer is well photographed in picturesque (albeit often un-American looking) locations. Stelvio Cipriani contributes an erratic score that has a little too much pop-art flavor for my taste but is often effective anyway. I shouldn't overstate the cruelty of this film in terms of violence; it doesn't really go in for gore, but pushes the idea of Jose's cruelty to the forefront of our attention. Audiences in Italy, Spain and beyond clearly responded to spaghetti cruelty. Maybe many of them still felt something like the exploitative cruelty shown in El Precio in their daily lives. Whether they did or not, they seemed to have little patience for the fine but crucial distinctions drawn in American westerns of the period. The more I see Fifties westerns, the more things seem missing in the spaghettis, but the Italians and Spaniards brought new things to the table, including a sensationalistic visual sense, that give their westerns distinctive qualities that make movies like The Bounty Killer still worth seeing.
Here's an Ugly Ones trailer from United Artists, uploaded to YouTube by SWDBTrailer: