Rex had injuries to his neck and legs.

Javier's aunt Susy Cadena wrote:

"The two thieves brawled and punched him as hard as they could. Rex stormed upstairs to visit his master, who was still cowering in the closet, despite having been battered and bleeding from the beating.

Rex charged the robbers as soon as they began to approach the room where Javier was camped out. He felt he had to do whatever it needed to save his closest friend, despite the fact that he was bleeding and hurt. Police sirens ultimately scared the would-be burglars away after the courageous dog had been severely battered and shot several times.