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(Disregard Lebron, the video has details on the gunman).
So he's 18, somehow gets a firearm, and he shot his grandmother before going to school, which leads me to believe (speculate) that he's living with his grandmother, and probably for a reason. Seems to me like this was really a mental health issue.
Also, because I know this is a big sticking point with Libs... he's NOT white.