He just tried to kill himself so it seems. They found him injured.

Accused sex trafficker Jeffrey Epstein injured in federal jail in Manhattan: NBC News

https://www.cnbc.com/2019/07/24/jeffrey-epstein-injured-in-federal-jail-in-manhattan.html

Jeffrey Epstein Found Injured in NYC Jail Cell After Possible Suicide Attempt: Sources

https://www.nbcnewyork.com/news/local/Jeffrey-Epstein-Found-Injured-in-NYC-Jail-Cell-After-Possible-Suicide-Attempt-or-Assault-Sources-513174311.html