he entered the building sometime at 4 p.m. on december 6, 1989 with a ruger mini-14 rifle and hunting knife. after he entered a second floor mechanical engineering class of about sixty students at about 5:10 p.m., he approached a student that was giving a presentation. he ordered that everyone stop what they were doing and both men and women to go to opposite sides of the classroom. nobody moved at first, believing it to be a joke until he fired a shot into the ceiling. he killed six women and wounded three others there.