To avoid fanning the flames of the truther types, I should have said there were no reports of wounded students surviving. A number of wounded adults survived.
The crime, committed by a deranged young man, obviously occurred. Why the law enforcement organizations haven't managed to report the murders, and/or publish them on the FBI web site is a reflection of bureaucrats at work, not what actually happened.
Pretty hard to do with such folks. Any rebuttal of their sick nonsense, is just a cue to whip out another bit of Internet "evidence", or further "proof" of some boundless conspiracy.