18 Headless Bodies Dumped Near Mexico Tourist Spot Zetas cartel blamed for killings near Guadalajara lake By Rob Quinn, Newser Staff Posted May 11, 2012 2:00 AM CDT 22 comments Comments Forensic technicians arrive at the morgue with the corpses found dumped in two cars. (Getty Images) (Newser) – There's no end in sight to the horrific tit-for-tat Mexican drug cartel murders. In the latest atrocity, some 18 decapitated and dismembered corpses were found dumped in two cars near a lake in Guadalajara popular with tourists and retired Americans, reports ABC. The bodies, which were so badly mutilated that investigators have not been able to determine the gender of all the victims, appeared to have been refrigerated after death. Police believe the slaughter was the work of the Zetas cartel, which is waging a bloody turf war against the Sinaloa cartel in the area. The killings have been linked to the attempted kidnap of 12 people in the area earlier in the week, AP reports. A woman arrested after the victims escaped told investigators the kidnappings where "a repercussion of what happened in Tamaulipas" state, where the corpses of nine men and women were found hanging from a Nuevo Laredo bridge last Friday and the heads of another 14 people were dumped in front of city hall.