Wilno school massacre
Place
The Wilno school massacre was a school shooting that occurred on 6 May 1925 at the Joachim Lelewel High School in Wilno, Poland (now Vilnius, Lithuania). During the final exams, at about 11 a.m., at least two eighth-grade students attacked the board of examiners with revolvers and hand grenades, killing several students, at least one teacher, and themselves.