And the mass-shooting in Utøya was by a man pretending to be a cop.
He walked around and saying that everything was ok, and when they gathered around him, he started to shoot.
Witnesses says that he had a bullet-proof west, a pistol and a automatic-weapon.
"Han så akkuratt ut som en politi-mann!" - said by a witness.
Translation: "He looked just like a police-man!"
And that is pretty sick!
People pretended to be dead. They laid there while he walked among them, and screamed: "I am going to kill you all!".
Others hided in the forest, under rocks. And people started swimming away from the camp!