There are consequences for what we do. This guy is now out of a pension!
Well he was an adult, and not to be pitied. However, s KID going to school dressed as a woman is another thing. Again, where were his parents who allowed that.
There is a distinct probability, the shooter (McKierney) killed the other student (King), to prove to himself he was not gay. Perhaps, he had been friendly with the victim (King) and was harassed by other male students, and took his anger out in King.