20 team members boarded a boat at Ouderkerk aan de Amstel and began to drink heavily.

Passing witnesses thought that the officer was panicked and fighting for his life, whilst an aide worker alleged that the footballers had used beer and cocaine.

[5][6] [7] In September 2011, AFC Ajax fans broke into applause at the 31st minute of a match against FC Twente to commemorate the life of Koomen, who had been a season ticket holder.

[9] Amsterdam FM reported that the officer who shot Koomen had a bad reputation in the force and had been convicted in 1999 of assaulting a handcuffed arrestee.

[10] On the evening of 30 January 2012, part of Stadhouderskade and Weteringschans were closed off to enable a reconstruction of events by twenty researchers.