Great, informative post. The one thing I'll add is this: In my opinion the vast number of incriminating evidence that is still open-source, versus on local Intra-nets, are most likely hidden, stored and perhaps encrypted and password protected on the Dark Web. Unfortunately, though I would be willing to scour and visit such places, I lack the software and knowledge one needs in order to do it. I have a very rudimentary understanding, such as one could use TOR, or whatever, but that's it. I'm also guessing once you get flagged for visiting, even if you report to LE, could still turn into your worst nightmare. Apology in advance for 'using so many words.'
Side-note: the Captcha I just had stared with 'ldr'. Kek.