Twenty people who witnessed or were injured in the Alphen aan den Rijn supermarket shooting in April are going to court in an effort to force the state to pay them damages, the Telegraaf reports.

They say the state was wrong to give shooter Tristan van der Vlis a gun licence because of his psychiatric problems.
The police were aware that Van der Vlis had been committed to a psychiatric clinic in 2006 but failed to take the information into account when granting the licence.
Witnesses
Police chief Jan Stikvoort, Van der Vlis’ parents, the head of the local gun club and director of the clinic are all on the witness list, the paper says.
Van der Vlis went on his three-minute rampage in April this year, shooting dead six people and injuring 16 before turning a gun on himself.
The investigation into the shooting spree revealed that Van der Vlis was probably a paranoid schizophrenic who suffered repeated periods of depression. He also made at least two suicide attempts in 2008.