From https://elizabethnickson.substack.com/p/sic-transit-gloria-mundi-could-this (h/t u/Fringe--dweller) there is an email within the DOJ releases from Epstein to Roger Goodell dated 9/27/2021, written by Epstein some 2 years after his supposed suicide including some random sports stats from that same time period. Assuming this is real, unless the DOJ has released a fabricated email, this would be a smoking gun that at the very least he hadn't killed himself by 9/2021.
(Note: I did a quick search on https://www.justice.gov/epstein/search and did not find this email. I'm not sure why not, but if you find it let me know how you searched.)
Jon Gruden was the head coach of the Raiders at that time, and opened the season with 3-1 record including 3 victories against good teams. He resigned a few weeks later after ESPN leaked internal emails showing that Gruden was misogynist and racist. So it fits the timeline and character of the email, if nothing else.