Diamante Lobo (1975)
Priest turned vigilante Father John (Van Cleef) hunts down a gang of criminals, led by Sam Clayton (Palance), who killed a man in a local bar. On the gang's return to the town, they kill the priest, leaving a young parishioner Johnny behind. He now seeks revenge for the death of the holy man.
Directed by Gianfranco Parolini. Starring Richard Boone, Lee Van Cleef.