I can't read the article as I don't have a subscription.

So if you're this dude, how do you make this investment?

Presumably you just call your fiance guy and tell him to put a huge amount of money into Bitcoin and the order gets passed down to someone who knows what their doing and somewhere there is a PC out there with a bazillion dollars in Bitcoin sitting in cold storage?

I gotta think the end guy who makes the buy is a pretty big target for criminal types as far as figuring out where such coins are stored....