"Tomorrow I will shoot my Dutch teacher, and as many students as I can. It will be on the news tomorrow. It's a school in a Dutch city called Leiden, and for more proof, I will using a 9mm Colt Defender. I will be carrying a note with me when I go into school which will explain why I did it. If the message of the note will not be published, a friend of mine will post it here...a day later. Oh, and I'm using a proxy, the police is not gonna find me tomorrow."
Leiden - Alle Leidse scholen voor voortgezet onderwijs en middelbaar beroepsonderwijs morgen dicht... politie.nl/nieuws/2013/ap…— Politie Den Haag(@PolDenHaag) April 21, 2013
Update
The police have confirmed that have arrested an alumni of The British School in the village of Voorschoten. More details shortly on Omroep West.
DUTCH SCHOOLS REMAIN CLOSED AFTER THREAT UPDATED
Dutch police are on high alert after a threat was posted on a website. It was not immediately clear which school is the target. Officials decided to temporarily close all schools and colleges.
The shooting is supposed to take place within days. The threat was made against a specific teacher. The wannabe shooter says he will take out his teacher and as many students as he can.
Officers will be patrolling schools and colleges in the greater Leiden region around the clock. Schools will remain closed till further order.