Arriving five minutes after the emergency call, they entered an “inferno ... dead people and injured people, screams and smoke," Orebro police chief Mr Wiren said.
Wielding three guns and dressed in green military garb, he launched his deadly attack at adult education centre Risbergska School before he was found dead by police.
As Sweden falls silent for the victims of the Orebro killings their families are still waiting for answers, Alex Croft croft writes.
When the third shot rang out, they knew something was wrong, and after one person froze in shock in the doorway, Maria dragged them out of the way and locked the door, she told Expressen.
But I don't want to die,” Saddam Al Rahoumi, who heard gunshots as he followed dozens of people running out of the dining room, told TV4.
