My heart goes out to the Dutch people, especially the families of those killed and injured. I would think the Royal family would be shaken, but not let one crazy person damage their connection with their people. Queen Beatrix seems to be cut from the same cloth as Queen Elizabeth, so I would expect her to react with dignity and bravery, putting her people before her own safety.  

There are millions of people around the world who are thinking of all of  you, and sending you wishes of healing.  Personally, I would have liked to see the driver recover, just so he could stand in front of the families who lost someone, and explain what gave him the right to take a life.