Can anyone shed light on what Lucas' involvement with the mafia( if any) were?
You can find much information in this article:
http://nymag.com/nymag/features/3649/And here:
http://www.globalpolitician.com/25325-american-gangster-courts-laws“The raiding party was acting on a tip from two Gambino crime family soldiers who are arrested on drug trafficking charges. The soldiers revealed that one of their biggest customers for heroin was a prominent and flamboyant Black drug dealer named Frank Lucas, who liked to call himself “Superfly.”