On Thursday, March 15, 2018 at 9:30:06 AM UTC-7, Frank wrote:

A better marksman wouldn't leave any witnesses. Still, the "feared for his
life" defense usually works like a charm.
Allow the students to carry concealed fire arms so they can defend themselves. The only thing that will stop a bad teacher with a gun is a good student with a gun. More blood sacrifices on the altar of the NRA and Supreme Wizard Wayne.