After following this case through 8 different threads without having an account, I finally joined in.
I'm in an interesting position, as I have personally met and interacted with SM, MM, and MM a few times (but never BM), but would not go so far as to consider myself a family friend or in any way close to them - just brief acquaintances over a few years, only connected through social media now. While I have nothing new or interesting to add, thanks everyone for staying so committed and searching for the truth. It's been a great place to keep up with things as they happen as we all grow more desperate for answers.
Coincidentally, I also personally knew one of the victims of the Delphi Murders - I wish I had known about this site back then.
You all rock.