On the day of the shooting, before leaving his residence at his usual time, Steinhäuser armed himself with a
9mm Glock 17C semi-automatic pistol, a
Mossberg 590 Mariner 12-gauge pump-action shotgun, which was unusable due to an earlier handling error, and a
diving knife. Steinhäuser entered the school unmasked at approximately 10:45, carrying his weapons and ammunition concealed in either his sports bag or backpack. As Steinhäuser was in the hallway, he encountered the building's caretaker, and briefly talked with him. He asked whether or not Ms. Alt, the principal of the school, was in the building. The shooting started shortly before 10:58. From the lavatory, Steinhäuser went to the school office. There he shot the deputy school principal and the secretary. In the next room was the headmistress, but Steinhäuser did not enter the room despite the door being unlocked. When the headmistress went to check the noise, Steinhäuser had already left the room. Upon discovering the bodies, she locked herself in her office and alerted the emergency services. Steinhäuser moved from classroom to classroom between the second and third floor, pausing briefly each time in the doorway to shoot a teacher, then moving on to the next room, sometimes shooting at teachers he encountered in the halls or the stairways. There were two exceptions to this pattern: In Room 208, Steinhäuser had either not seen the present teacher or mistaken her for a student. He thus did not open fire, but returned a few minutes later and shot at the now-barricaded door, fatally wounding two students. In the second instance, history and arts teacher Rainer Heise stated that he had seen Steinhäuser on the school yard, just after he shot a teacher on the grounds, trying to fire at fleeing students before realising his gun was empty. At 11:05, a janitor called the police. At 11:12, the first police car arrived at the school. Steinhäuser opened fire on the police, fatally shooting one of the policemen. A student told other officers around the same time that she had recognised the shooter as Steinhäuser. after which Steinhäuser lowered his weapon and replied: "Herr Heise, für heute reichts." [Mr Heise, that's enough for today.] According to Heise, he asked Steinhäuser for a private talk in a nearby art material room. When Steinhäuser entered and put his gun on a shelf, Heise pushed Steinhäuser from behind and locked him inside. Steinhäuser killed himself shortly after police entered the building minutes later. In total one third of the school's faculty were killed, and two students, aged 14 and 15, were shot by rounds fired through a locked door. He fired around 71 shots in total and reloaded three times during the massacre. == Reactions ==