STOCKHOLM, SWEDEN - APRIL 09: The Swedish royal family including including King Carl XVI Gustaf of Sweden (looking up) attends the city of Stockholm's official ceremony for the victims of the recent terrorist attack on April 10, 2017 in Stockholm, Sweden. Four people died and fifteen were injured after a hijacked truck crashed into the front of Ahlens department store in Stockholm on April 7, 2017. (Photo by Michael Campanella/Getty Images)
