Rikers Island is the famous jail in the shadow of LaGuardia Airport. It has been the temporary home of some of the most high-profile violent criminals in the city, including David Berkowitz, the Son of Sam; and Mark David Chapman, the man who killed John Lennon.
"He's not a mob boss," the source close to Manafort said.
A New York State judge ordered the transfer at the request of New York City District Attorney Cy Vance, Jr. He will be held in solitary confinement for his own protection, the source said. The move is expected to happen as early as Thursday.
Vance, a Democrat, said in March that a New York grand jury charged Manafort with 16 counts including residential mortgage fraud, falsifying business records and other charges. He said at the time that "no one is beyond the law in New York." Manafort cannot be pardoned by President Trump for state crimes.