6 Bodies Found in Cancun Cave, 3 Without Hearts Zetas cartel suspected after grisly find made near resort By Rob Quinn, Newser Staff Posted Jun 7, 2010 8:11 AM CDT 46 comments Comments Drug-related violence in Mexico has claimed over 22,000 lives since 2006. (AP Photo/Eduardo Verdugo) (Newser) – Three of six corpses found in a cavern near Cancun yesterday had had their hearts ripped out, Mexican police say. "They were apparently tortured and their chests were opened to remove the hearts," said the official statement. The four men and two women have not been identified, AP reports. Police didn't say whether they believed drug cartels were behind the gruesome killings, although the Zetas cartel's trademark "Z" had been carved into the abdomens of three of the bodies.