Reason: "I just started shooting, that's it. I just did it for the fun of it. I just don't like Mondays....I just did it because it's a way to cheer the day up. Nobody likes Mondays."

January 29, 1979, San Carlos, CA. Brenda Spencer was 16, using a rifle she got for a Christmas present - she'd always had an interest in guns. As Cleveland Elementary School, across the street from her house, opened up, Spencer opened fire on the students in the playground. The principal and head janitor went out to pull the children back, and both were shot and killed. Nine kids were also injured, although none died. Eventually, the police drove a garbage truck in to block her from shooting. She barricaded herself in the house, and after a few hours of talk with the police, she surrendered.