Factual error: Rudy "Cheyenne" Cadena was not killed by his own gang as shown in the movie. In reality, he was killed by the Nuestra Familia, the rivals of the Mexican Mafia.
Revealing mistake: Strangulation scene that uses a rope, the rope never goes around his neck. (01:53:00)
Chosen answer: He did not want to take part in the murder. That's why one of the attackers asked him "You sure you know what you're doing homes?"