Ronald Raiton out of Philly.

Ran a large P2P importing racket that made Philly the Meth capital of the world. Imported 500 million's worth over 4 years supposedly. Dealt with the Scarfo family.

Then worked as an informant and managed to snare the elder Martorano and Berkery. Both of them did time. He didn't and got to keep a couple million.

A shrewd motherfucker.

http://articles.philly.com/1988-05-24/news/26264195_1_fbi-informant-fbi-agents-federal-agent