down some already damaged buildings endangering crews and complicating the search for survivors. a u.s. militar spokesman says a group of pirates accused now of murdering four american citizens at sea could be sent to the united states to face trial. the merpts, of course, were sailing around the world. two of them handing out bibles around the world when their yacht was hijacked last friday. pirates murdered them yesterday. the military, the fbi, the justice department, all working on the next steps for the 15 pirates now in custody. officials say negotiations were underway when a pirates fired a rocket propelled grenade at one of the warships. naval forces then reported hearing gunfire aboard that yacht. all four hostage shot and killed. the first signs of justice tonight for the family of the u.s. federal agent murdered in mexico. word of an arrest is next. and remember the uproar over arizona's last immigration bill? [chanting] >> we have rights.