Warning - Item Zetas Behead Members of the Gulf Cartel might contain content that is not suitable for all ages. By clicking on CONTINUE you confirm that you are 18. Men with the letter Z on their chests, allegedly associated with the Mexican Zetas drug cartel, are prepped for beheading in this video still. -WARNING: Extremely Violent and Explicit Material! Viewer Discretion is Advised- This is a video of the execution of two men who identify. Warning - Item Another Mexican Beheading Video - Liveleak needs to add another category might contain content that is not suitable for all ages. The second video is a young woman that is decapitated by the Zetas, who according to them betrayed them. In the video one can hear someone screaming that is outside.