he definitely was cautious on who would get close and who he would talk to. so how do we find a source that can get to this inner circle? >> jim had a relationship with a high-level source that had been utilized by the dea for approximately 20 years. hi name was samir. in new york, in the early 1980s, jim arrested samir for narcotics trafficking. >> we arrested him and i knew he was pretty important. >> he was palestinian by birth, well educated, well read, multilingual, phenomenally bright. i knew he would be useful because he understood the global criminal networks. as source, he had the capabilities of following through. >> joining us now, the original case agent on this investigation jim soylus, now retired after 34