 His criminal profile portrays Ramírez Treviño as a violent, cold-blooded, and intelligent criminal. Assassins who have worked for him say that the drug lord enjoyed spending time alone, gambling, and drinking; they also say that he was an introvert and was easily frustrated. To instill fear among his enemies and respect among his men, Ramírez Treviño reportedly tortured his victims. He was considered "at least as violent" as former Zetas leader Miguel Treviño Morales.
