How can the Federal government claim authority to try a person for murder, especially after the finding in a state court is “Not guilty”? That would be double jeopardy, explicitly prohibited by the 5th Amendment.
No Federal interest was involved. No law enforcement at ANY level, even, was involved.
The most that could be brought against a defendant found not guilty would be a civil case, not a criminal case. And that only by the person or persons directly harmed.
They did it to the cops in the Rodney King case. Tried once, not guilty. Feds took over, guilty.
They wouldn’t be trying him for murder, but rather for denying those 2 dead felons their civil rights. That’s what they did in the Rodney King case.