Someone on /r/masskillers found Adam Lanza's YouTube channel from late-2011/early-2012. Eerie commentary from him on his beliefs and ideas of "freeing children from culture."

https://www.youtube.com/channel/UC5zGm_N3KdzC-KT6Fe6eA_Q

>Channel name is CulturalPhilistine

>1st link on duckduckgo "Cultural Philistine by Sidney Hook

>Sidney Hook