I think I know where the last video was shot. At the 36 and 45 second marks, the following text appeared:
I've been pouring through what this could mean for the last few weeks, when a friend of mine suggested that they might be coordinates. When I looked it up, it matches the exact park that I [REDACTED BY WIKIA] years ago. I intend to see what is there (and I will NOT be going there at night with a candle to light my way).