Complex sentence: Making his way to the United States, Rocancourt used at least a dozen aliases, and got the rich and powerful to invest in his schemes, he told "Dateline", by tapping into their greed.
Split into simpler sentences: Making his way to the United States, Rocancourt used at least a dozen aliases. He got the rich and powerful to invest in his schemes, he told "Dateline", by tapping into their greed.