"Everything was very random and there was nothing to indicate that they viewed the event as high-risk," said one of the witnesses, contradicting earlier reports which described the quick response of Vilks' police protection. Police sources, ahead of the results of an investigation into the incident, told the media that one of the two officers "emptied his entire gun," in an attempt to stop further shooting by the gunman.
Vilks was due to speak at an event called "Art, Blasphemy and Freedom of Expression" when the premises came under fire from the gunman, presumed to be 22-year-old Omar El-Hussein. One man was killed and three police officers were injured in the attack, after which El-Hussein fled, later reemerging outside a synagogue in the city, where he killed a Jewish security guard and wounded two police officers, before being fatally shot by police.