Alphen aan den Rijn commemorates on Tuesday the shooting that took place two years ago in the shopping center Ridderhof. At 12 noon there will be a private memorial service organized by the city for the survivors and victims. Bas Eenhoorn, mayor of Alphen aan den Rijn, will lay flowers together with the shopkeepers' association of Ridderhof.
In 2011 Tristan van der Vlis caused a massacre at the mall. In a hail of bullets, six innocent people were killed and 16 were injured. Van der Vlis then committed suicide at the checkout area of a supermarket.