Quote, the agent saw bullet holes in the classroom door, and police told the agent that the suspect had attempted to shoot at them through the opening. the agents did not have a battering ram or breaching tools. a u.s. marshal on the scene provided the agents with a ballistic shield. the officers sent for the key to unlock the classroom. once they had the key, they were able to open the door while standing off to the side, shielded by the outer wall of the classroom. ramos, the suspect, came out of the closet firing at them. they returned fire, the official said, killing him. one of the agents...