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.
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