What's the work
Ramon Rojo is the main antagonist of the 1964 film, A Fistful of Dollars which is the first instalment in the Dollars trilogy - a trilogy of spaghetti westerns directed by Sergio Leone and starring Clint Eastwood.
Who is he
He is a member of the Rojo gang - a group of illegal rum-runners controlling a small town called San Miguel - being the middle-eldest. He and his brothers is at war with the Baxter family. He then becomes enemies of the Man with No Name AKA Joe.
Ramon is easily the most vile of the Rojo gang. Firstly, he ambushes an army of Mexicans who had come to trade gold for rifles and not to fight (he disguised himself and pretended to be trading with them) and massacres them all via a machine gun and his rifle, and does not allow any of them to flee. He does this just to steal their gold. Once he hears that two have "survived" (even though it's just two dead bodies used as a trick by Joe), he went to "kill" them. He also kidnapped a woman named Marisol and held her prisoner, forcing her to live with him, merely because her husband cheated him at cards. After Joe rescues Marisol, Ramon brutally tortures him and after he escapes, he then has Silvanito tortured (thinking he knows where he is) and then attempts to hang him. Ramon then sets fire to the Baxter house and massacres the entire family when they try to escape out the door. When John Baxter and his son come out unarmed and trying to surrender, Ramon pretends to spare them but them kills them both in cold-blood.
None. He never shows any remorse for what he does.