12 Sinaloa state police killed in ambush by the Beltran Leyva cartel. It is widely known that the Sinaloa state police work for the Sinaloa Cartel and they only crackdown on their rivals. The Beltan Leyva organization(cartel). There's actually a video of a phone call between a Sinaloa plaza boss and a Sinaloa state police chief talking about how many Beltran Leyva members they have captured or kidnapped. I haven't heard the full audio myself but my brother has told me that. Let's see if I can find the video to translate it as it peaks my interest.