CUERNAVACA, Mexico – Two hundred Mexican Navy marines stormed an upscale apartment complex and killed a reputed drug cartel chief in a two-hour gunbattle, one of the biggest victories yet in President Felipe Calderon’s drug war.

Arturo Beltran Leyva, the “boss of bosses,” and six members of his cartel died in the shootout Wednesday in Cuernavaca, just south of Mexico City, according to a navy statement Thursday. Read the full story