So, if anyone with decision-making authority in the system... Prison management, State authorities, FBi... really cared to, there could be an enquiry. I believe we have all phone calls on record here in the Utah HS operation if authorities wanted to see how anyone involved was being contacted. But if there were anyone with a nice cash bonus who cared to buy the decisions at the prison, and get the perp off out suicide watch, then get the cellmate moved, that is all it would really take..... Epstein might really have been looking for a chance to duck outta the news, so to speak.
Higher level plans require more power, more influence, and get more complicated.... but could also be easier to prove.
But there will be no real investigation. And, like JFK or even 9/11, nobody needs to believe our government official accounts, ever. But to create a plausible explanation takes more than imagination, and nobody really can get the facts. so here we are. Mushroom people.