Olsson met the known criminal Clark Olofsson at the Swedish correctional facility in Kalmar,[2][3] and they became friends.
[1][4] Olsson was fascinated by Clark Olofsson's criminal past as a bank robber.
[6] He then entered Kreditbanken with a submachine gun[7] under his jacket[1] and took four people hostage, demanding that Clark Olofsson be brought to him[5] along with 3 million Swedish krona.
[7] Olofsson was a repeat offender who had committed several armed robberies and acts of violence, the first at the age of 16.
[8] During the robbery, Olsson fired multiple times at the police, injuring one officer in the hand and another in the face and arms.