Board Thread:Questions and Answers/@comment-14084699-20130820234509/@comment-67.60.104.152-20130822070258

I don't know if there is a direct answer to the question in the show, but there are a number of possibilites. The most simple is that he knows him from his work with the police, but since he was so clear that Zack shouldn't use his own credit cards it seems likely he has at least one alias as well.