I have been quiet in awe of all your great sleuthing on this sad case. I can think of one reason the feds are involved. I'm sure on FetLife, the members that aren't busy abducting and killing Chinese students, are sharing Role Play. Maybe exchanging fantasy's and even pictures of their consensual role play. I think this guy shared his crime with them portrayed as a fantasy. If he was idiotic enough to include bondage photos could that be federal?
Sent from my XT1650 using Tapatalk
Yes, that is precisely the situation that could get him into federal court. It's probably a case of first impression, meaning the federal courts probably never exercised jurisdiction in a similar case, precisely because no one would be so stupid so as to show pictures online. But if indeed he did that that could be enough. Maybe the crime was committed in connection with him doing role playing online where someone else in another state or country was "directing" him to do certain things to her. The person on the other end could have thought it was acting.
I think many of us forget that younger people lived their whole life online so they are much more comfortable sharing pictures of everything they do.
Someone wrote above about him being inactive. Maybe he went in under another name to commit the crime? That would show even more premeditation.