I have been trying for over a year to find this clip and put it on my blog. The best I can do is this Hulu Clip, it starts at the right counter, and it finishes at counter 31.11.
From Life After People, Second Season, episode Crypt of Civilization. We need to know about these things so they will never happen again.
I bring you Norwich Mental Hospital, otherwise known as Norwich State Hospital for the Insane, in Preston and Norwich, CT, USA
Clip contains triggers
Eta: I apologize about the ads.