Not to worry. Treason has no statute of limitations.
The Feds never indicted anyone for the JFK assassination—and we know with metaphysical certainty the names of some of the perps.
They were specifically named by E. Howard Hunt:
—David Atlee Phillips
—Cord Meyer, Jr.
—William Harvey
—Frank Sturgis
and of course Hunt himself.
Ref: https://www.amazon.com/Bond-Secrecy-Watergate-Conspirator-Howard/dp/1936296837