Joe Cantu

Joe Cantu, 47, of San Antonio, had been found dead with more than 13 stab wounds.
The authorities said they had not determined the motive for the killing. But one official, who spoke on the condition of anonymity because he was not authorized to disclose information related to the case, said it appeared that the killing might have involved a drug-related dispute.
The killing followed the assassinations last week of four federal police officers and the killing two weeks ago of the chief of the state police unit in Nuevo Laredo and of the director of the city's emergency response system.