Ray Khan drives a custom Rolls-Royce worth more than half a million dollars.

He wears Gucci, flies first class and threw his son a wedding weekend that looked like something from a Bollywood film.

To anyone who sees him around Savannah, Georgia, he is simply a wealthy Indian businessman who built a dazzling version of the American dream.

What they would never guess is that Khan - not his real name - faced deportation after being caught buying untaxed cigarettes in an undercover operation by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), but was given a chance to stay by becoming an informant.

What followed was extraordinary.  

In an exclusive article, former ATF special agent Lou Valoze, who was Khan's handler, reveals how a soft-spoken businessman who had never touched drugs and knew nothing about firearms became one of America’s most unlikely - and successful - crime fighters.

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