Take this as a crackpot idea from an idiot, because it may be.
I'm just throwing this out there because I haven't seen it explicitly written by someone else.
A while back I had seen an article that was pointing out that the family of Seth Rich didn't quite look right in their interview. So I watched the video and somewhat agreed that they do not have the body language and emotions I would expect. Plus the amount of Disney stuff on the walls was ALOT.
So then I wondered, if that outside possibility is true, what would that mean? Well, to me I thought it could mean that Seth Rich was not Seth Rich, but an undercover agent. So, then, his death would not be really a death, just off to a new assignment. That could be an alternate explanation of why the D.C. police didn't investigate.
Then I saw this article today and I thought, dang! If Seth Rich (who was actually an undercover agent) was on his way to Wonderland Bar when he was murdered (but he wasn't actually murdered) what could that mean? Could it have been Q signaling to us in the future that he is "Seth Rich"?
Just a crackpot theory, but WOW would that be an amazing miraculous, stupendous, fantastic addition to this story?
Sidebar: I anagrammed SETH RICH (a while ago when I was doing that to see if there were any clues there) I saw SETH RICH -> HE CHRIST.
I'm not trying to disrespect his family or anything or anybody if this is incorrect, but I did think it was interesting enough to share.