Yeah yeah, let me dig it up.
This is on Lanza. Not the only one, but it's the shortest.
http://www.thegatewaypundit.com/201...newtown-school-because-it-was-an-easy-target/
As for the Columbine kids:
http://www.slate.com/articles/news_...004/04/the_depressive_and_the_psychopath.html
(1) The Lanza stuff is law enforcement theory, not anything Lanza "specifically stated" like you claimed.
(2) The Columbine article shows that the shooting was a secondary thing and that the real plan was a massive bombing. I don't see how the fact that no one is armed at the school (which was not actually the case) was a factor at all.