UPDATE: Bulger is now in flight to Boston.

One of the world’s most dangerous men -- James “Whitey” Bulger -- and his companion Catherine Greig are expected to be extradited back to Boston Friday to face charges there after 16-years on the lam.

Bulger -- who shot up to number one on the FBI’s Most Wanted List after the death of Osama bin Laden --  was arrested Wednesday in Santa Monica, California after eluding authorities since 1994.

Once back in Boston, he will face charges in connection with 19 murders in Massachusetts, as well as slayings in Oklahoma and Florida.

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