I don’t think Seth Rich is alive; Q said MS-13 right after his name, no hint from Q that SR is alive.
The parents were seriously threatened.
Neither do I think so; HOWEVER, the parents do not confirm 'serious threatening'. I simply posed a possible answer that addresses this conundrum.
I suppose I could also introduce alien abduction... 🛸 I will keep my own cards close to my vest. :^)