Forensic experts examine the area in which 49 mutilated bodies were found on a highway connecting the northern Mexican metropolis of Monterrey to the U.S. border in the town of San Juan, Mexico, on Sunday, May 13, 2012. (AP Photo/Christian Palma)

Photo by: Christian Palma

Forensic experts examine the area in which 49 mutilated bodies were found on a highway connecting the northern Mexican metropolis of Monterrey to the U.S. border in the town of San Juan, Mexico, on Sunday, May 13, 2012. (AP Photo/Christian Palma)