On 26 April 2002 a former pupil killed 16 people at the Gutenberg-Gymnasium in Erfurt and then himself. He had been expelled in October 2001, months before the Abitur exams, and a Gymnasium pupil who left without the Abitur had no school-leaving qualification at all. Thuringia closed that gap. Since 2004 every pupil at a Thuringian Gymnasium must take an exam at the end of grade 10, the Besondere Leistungsfeststellung. The weapons law was also changed. Sport shooters under 25 now need a medical and psychological examination, and the rules for storing guns and ammunition became much stricter.