. >> barton watson was one the best con men i've ever run across. >> his life was a facade.layed. it was a series of lies. >> narrator: barton watson perpetrated one of the biggest scams of the 21st century... >> he was an excellent con, and i've heard the term "evil genius." >> narrator: ...stealing $120 million and leaving behind a trail of wreckage. >> barton understood the common denominator in people, that most people can be appealed to at their basic core -- greed.