Day of Anger
I giorni dell'ira (original)
Classic Italian Western about a famed gunfighter who snaps and terrorizes a town, only to face a duel with the local scruffy boy he trained to shoot.
Starring Lee Van Cleef, Giuliano Gemma, Walter Rilla, Christa Linder, Yvonne Sanson, Lukas Ammann, Andrea Bosic, Ennio Balbo, Anna Orso, Giorgio Gargiullo
Watch "Day of Anger" on Tubi TV released in 1967. It's a western and action & adventure movie, and has a rating of 7.1 out of 10 from Imdb which is usually fine for this kind of movie, and is currently available to watch for free.