The former student’s first target was his former Civics teacher, Robert Brens, who flunked the shooter in 1989 and one of Brens’ current students. The shooter continued his attack by taking over 70 students hostage for 8 1/2 hours before giving up to authorities. He wounded nine students, one other teacher, and killed three students in addition to Robert Brens. Of the deaths, only one died instantly. Mr. Brens hummed quietly to himself as he bled to death. Robert Brens was 29 years old when he died.