Mexican marines guard the entrance of th

Mexican marines guard the entrance of the building complex where the leader of the Beltran Leyva's cartel, Arturo Beltran Leyva, was shot dead by security forces, in Cuernavaca on December 17, 2009. Arturo Beltran Leyva, a Mexican drug kingpin aka the "Boss of Bosses," has been killed in a dramatic shoot-out between cartel members and the military, at south of Mexico City, Navy said. Beltran Leyva was Mexico's third most wanted man, with a 1.5-million-dollar (one-million-euro) reward on offer for information leading to his capture. AFP PHOTO/Luis Acosta (Photo credit should read LUIS ACOSTA/AFP via Getty Images)