
On August 23, 1973, Jan-Erik Olsson walked into the Sveriges Kreditbanken bank on Norrmalmstorg Square in Stockholm, Sweden, with a submachine gun hidden under a folded jacket. The 32-year-old convict had recently escaped from prison during a break.
He fired shots into the ceiling and shouted “The party has just begun!” He quickly took four bank workers hostage: Birgitta Lundblad, Elisabeth Oldgren, Kristin Enmark, and Sven Säfström.