Steinhäuser now made his way to the third floor, where he shot another teacher in room 307. Here he changed the magazine of his weapon for the first time. Back in the corridor he met a teacher who wanted to inquire after the noise. She was ignored by Steinhäuser. He then shot a teaching trainee in room 304/310 and another teacher in the hallway. Shortly thereafter, Steinhäuser was identified for the first time because a student recognized him despite the face mask. On the way to the south staircase he shot another teacher.