Just to let you know, TJ Lane wasn't sentenced until March 19th, 2013. It was then that he gave his infamous insult to the victim's families, flipped them off, and wore his "Killer" t-shirt. That was months after Sandy Hook, so that means Adam never saw him do that, but still knew about him after the 2012 Chardon High School shooting.
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"Now! Feel death, not just mocking you. Not just stalking you but inside of you. Wriggle and writhe. Feel smaller beneath my might. Seizure in the Pestilence that is my scythe. Die, all of you."
- T.J. Lane (in his Facebook poem)