For someone that lies and cheats, are these not possibilities? From my experience, those that lie and cheat at this level, generally have patterns of dishonesty, bad character and are less than honorable in the course of their professional careers.
In addition, the man could have very well been blackmailed while in a foreign country, or in downtown Boston. Wouldn't be the first time some high roller or someone well connected was video tapped in a hotel room, and severely blackmailed.
Er video *taped*.