And a couple of school shootings, school incidents this week, the first earlier on.
rom this 12-year-old boy, 12, who survived Monday's shooting at that middle school in Sparks, Nevada.
Police say one of his classmates, also 12, shot and killed a teacher before turning the gun on himself with a handgun he took from his parents.
STEPHANIE ELAM, CNN CORRESPONDENT: It's very heartbreaking to hear, and it's also just so sad to hear that Mason, the boy that you're about to hear from, really did think that the shooter was one of his friends. He said that they were friendly, that they had a class together as well. Same thing with the other boy that was shot.