Whitey Bulger has asked the U.S. Supreme Court to hear his appeal of his racketeering convictions for playing a role in 11 murders and committing a litany of other crimes.
Bulger is believed connected to the death of a Tulsa businessman, Roger Wheeler in 1981. Wheeler was murdered at Tulsa's Southern Hills Country Club.
It is unclear if the high court will take up the Boston gangster’s case. The court generally agrees to hear only a small percentage of the thousands of cases it’s asked to review each year.
A federal appeal court ruled in March that Bulger had not shown that his right to a fair trial was violated.
Bulger's attorney said a judge barred him from testifying about his claim that a now-deceased federal prosecutor granted him immunity.
Bulger, now 86, led a notoriously violent gang from the 1970s through the early 1990s. He fled Boston in 1994 after an FBI agent tipped him that he was about to be indicted. Bulger remained a fugitive until 2011, when he was captured in Santa Monica, California.
He is now serving a life sentence at a federal prison in Florida.
Federal prosecutors must file a response to Bulger’s request by September 12.
The Associated Press contributed to this report.