The couple corralled a large group of students and teachers into a single classroom .

On December 6 , 1989 , Marc Lépine entered Arriving a mechanical engineering class at the École Polytechnique and ordered Arranging the women and men to opposite sides of the classroom .

Lépine then moved Motion through corridors , the cafeteria , and another classroom , targeting Aiming women for just under 20 minutes before turning Becoming the gun on himself .

After complaints of boredom and depression , on March 13 , 1998 , Gale jumped Body_movement to his death from a classroom on the 15th floor of a building on the MIT campus .