I believe this is a snapshot of his FB account as much as I believe he didn’t have a FB account.
I made this brief list of links that shed light on the most asked questions regarding the Sandy Hook shooting. Please add whatever I missed:
1] Interview with one of two mothers who witnessed the kids running down to the firehouse, the Lanzas Honda doors opened [indication that it had already been searched], the broken plate glass window at the front door, the unusual quiet just before gunshots rang out from inside the school, and the kids subsequently evacuating the building:
http://www.youtube.com/watch?v=ptbd6qRY358
2] Video at 0:24 of the broken plate glass window at the front door of the school:
http://www.cnn.com/2012/12/18/us/connecticut-shooting-adam-lanza-barber/index.html
3] Police dispatch with video [at 0:50] of the broken plate glass window at the front door of the school:
http://www.frequency.com/video/broken-glass-at-front-of-sandy-hook/72154872/-/5-85140
4] Police Dispatch of the Sandy Hook shooting:
http://nhregister.com/articles/2012/12/14/news/doc50cc0897adc1a203744261.txt?viewmode=default
5] STATE POLICE IDENTIFY WEAPONS USED IN SANDY HOOK
http://www.ct.gov/despp/cwp/view.asp?Q=517284&A=4226
6] Details of shooting at Wikipedia with other resources and links:
http://en.wikipedia.org/wiki/Sandy_Hook_Elementary_School_shooting
7] State Police: All 26 Newtown victims shot with assault rifle