Who? Because if you have evidence of military secrets being leaked through prediction markets, we actually need that journalistic record maintained.
The suspect hasn't been charged with insider trading. (OP said those "in DC seem to be able to do everything listed.")
I think that was the point GP was making.
There is circumstantial evidence. We need to collate that. But nothing trumps direct evidence. If someone has that I will bend over backwards to find a way to securely connect them with, at the very least, a reporter who can document it so it shows up in an internet search when an empowered staffer starts down this path.