[3][4] The driver deliberately drove through people lining the street watching the parade, resulting in eight deaths, including the attacker, and ten injuries.

[8][a] The driver, identified as 38-year-old Dutch national Karst Roeland Tates, was treated by members of the fire brigade and police, taken into custody and transported to a hospital.

[12] Seconds after the attack, Red Cross and police first responders were providing basic life-saving treatment to the 17 victims, who were all taken to nearby hospitals.

[13] Members of the Dutch royal family who were waving at the crowds gathered were shown standing up to look over at the crashed car, visibly shocked and gasping with their hands over their mouths.

However, other reports revealed that Tates "had embarked on a mission of vengeance against society after losing his job as a night-shift security guard" earlier in the year and had been facing eviction from his house.

[23] Tates had scouted the area beforehand but when he returned for his assault, the situation had changed and people were standing in a previously cordoned-off street but he made no attempt to avoid them.

Prime Minister Jan Peter Balkenende announced the order to lower all flags on government buildings to half-mast.

[31] Initially, it was feared that the "act of madness by a lone attacker" endangered the long-held yearly tradition of the royal family's mingling with the Dutch people on Queen's Day.

Some 5,000 people watched the ceremony on screens placed outside on Apeldoorn's central market square[33] and millions more on live television.

Hours after the memorial, it was announced that after being in critical condition for over a week, an eighth person had died of injuries sustained in the attack.

[34] Just over a year after the attack, on 4 May 2010, during Remembrance of the Dead ceremony on Dam Square in Amsterdam attended by Queen Beatrix, a 39-year-old man dressed as an Orthodox Jew and carrying a suitcase shouted "Bomb!"