Canyon of the gun

Just for defending his land, they killed him in cold blood. He wasn't even wearing a gun, but they shot him down. And then they tore his fence down, letting their cattle run free on his range. His son saw it happen, but they had him covered too. They didn't kill him because they thought he was too young to give them any trouble. They were wrong. The son rode out to seek blood vengeance. And he finally got it in the Canyon of the Gun.