not that it's impossible, but there is no Westerhoff working at Columbia in the astrophysics department. I may have missed something, or he may be in a different department, but I can find no truth in the evidence brought forth so far.
Let me be clear though, I really don't dislike this guy, I have no problem with him, just if he isn't what he claims to be, he ought to fess up to it. Simple as that.