Dude, that's a quote out of context, as explained to you 1329037483743289472389 times and properly do ented at snopes.
A teacher in the freaking school is quoted (by a reputable source like the AP) saying she physically pulled him into a closet during the time of the shooting.
I know some clowns here are going to laugh at you, but I won't. I think it's pretty clear you fell for fake news (not the first one to fall for it, tbh) and in spite of actually realizing and accepting you've been duped, your incomprehensible hate and anger for this kid (who might be a dumbass or whatever, don't know him), makes you cling to some alternate reality that doesn't exist. Even the source of the original fake news retracted and apologized, eons ago.
Side note: I truly don't get the hate, anger and vitriol for somebody you don't know, because they have a different opinion/worldview. It's sad and pathetic. I understand thinking the guy is a dumbass, whatever, but getting seething mad over it? come on.