bullets already belted to be fed into a machine gun-style weapon , as well as Fabrique Nationale pistols , semiautomatic handguns that fire a 5.7-by-28-millimeter round . Suspect is a leader network believed to be smuggling drugs into Mexico . Last week , 2,000 Mexican troops were sent to Guadalajara , Mexico , to prevent violence . Mexican drug cartels responsible for killings of police officers . ATF : U.S. military sharing intelligence with their Mexican counterparts .
Suspect is a leader network believed to be smuggling drugs into Mexico . Last week , 2,000 Mexican troops were sent to Guadalajara , Mexico , to prevent violence . Mexican drug cartels responsible for killings of police officers . ATF : U.S. military sharing intelligence with their Mexican counterparts .