I don’t know but here are some hints, courtesy of the Daily News:
* He’s married
* He has three kids
* He’s dumb enough to a) not employ a little known response called ‘No Comment,’ and b) think anyone would buy this:

“She is a friend and that is it,” the man, who asked not to be identified, said Monday. The hedge fund honcho admitted Monday he wired Rist – the latest in an ever-lengthening line of sexy women linked to Woods – $100,000 because “she wasn’t able to support herself.” The honcho said he dated the 31-year-old siren for a couple of months last winter and insisted their relationship “was more emotional than anything else.”

Rist, he said, claimed she worked in the securities industry and lost her job because of office infighting. The moneyman said he bought Rist’s tale of woe because “she’s really bright.” Asked if Rist traded sex for money, the moneyman insisted that was not the case. “I gave her a little bit,” he said, referring to the money. “This was strictly to get her back on her feet. … I can assure you there was nothing of the sort.”

Let’s start by process of eliminating this shit. The following hedge fund managers do not have the proper number of children, so they are all out (in addition to the fact that they are paragons of virtue and would not cheat on their wives with Hooters girl):
* Loeb (has two kids)
* Ackman (has two kids)
* Paul Tudor Jones (has four kids)
The following manager is not married:
* Chanos
The following is too hot for that chick:
* Stevie (and has 7 kids)
Let’s get some possibilities going. It’s probably going to have to be someone who’s kind of stupid (i.e. would return a call asking to discuss mowing the same lawn as Tiger).