Bernardo Provenzano

a.k.a. "The Phantom of Corleone" and "The Accountant" due to his apparently subtle and low-key approach to running his crime empire, at least in contrast to some of his more violent predecessors.

Before his succession, he was more recognized as "Binnie the tractor" (Binnu u tratturi) because, in the words of one informant, 'he mows people down'.

A member of the Sicilian Mafia (Cosa Nostra) and is suspected of having been the head of the Corleonesi, a Mafia faction that originated in the village of Corleone, and de facto capo di tutti capi (boss of bosses) of the entire Sicilian Mafia until his arrest in 2006 after more than four decades on the run.


Resource:
http://en.wikipedia.org/wiki/Bernardo_Provenzano