It might be the case right now but it came out earlier this year that the CIA was entertaining this idea in 2017. This [0] appears to be the originating story and there are corroborating accounts in many other outlets.
> Planning to commit a murder or a terrorist attack is a felony that will put an individual in prison for a long
Unless it is with other people and, more critically, at least one of the people involved goes beyond planning and takes some concrete step to advance the execution of the plan (at which point it becomes the separate crime of conspiracy), no, planning a crime, even of that seriousness, is not itself a crime.
They intend, fully, to make an example out of him.
Why murder him when he's no threat to them anymore, and they can drag him through more hell for the next decade in order to show what happens when you cross the line?
I'm afraid you may have fallen for the deliberately misleading words of the supposed assurances given by the US. Here's what the Guardian[0] says of that particular claim (with my emphasis):
"and could apply, if convicted, to be transferred to a prison in Australia."
My understanding is that his application could be denied, without any recourse, by the DoJ (of whichever administration is in power at the time), and probably by the Australian government too.
How is Epstein at all relevant? I believe the conspiracy theory is around powerful people trying to keep their secrets secret. Meaning not let the US government know their secrets so they can avoid prosecution. So the US government would want Epstein alive. Why do you think the US government is prosecuting Ghislane Maxwell right now?