That's probably Ms. Mireles Source

Mr. Ramos was in a corner near a closet in Room 111, facing the doorway, body camera footage showed. He exchanged fire with the officers as they entered. A bullet grazed a Border Patrol agent who was near the door. One of the bullets appeared to have struck the gunman in the head, killing him.

Across the room, the bodies of children lay in an unmoving mass, according to the documents. A similar cluster of bodies lay in Room 112.

Officers could be seen in video footage rushing a few children out of the room and carrying out Ms. Mireles, who appeared to be in extreme pain. She reached an ambulance, but died before reaching a hospital.