An Addendum to "Wolf in Sheep's Clothing"

I've received some interesting possible explanations as to my teacher's shadiness as describe in my past post, "A Wolf in Sheep's Clothing..." post. Theories are as follows:

• He is a secret government agent serving as an undercover spy in the New York mob. He infiltrated for a specific purpose. The teacher thing is just a cover up.
• He is living in Harrisburg as part of the witness protection program because of the danger of his past line of work.
• He serves as a consutant to the mob (or any other facilitator-type of role) rather than actually being in it.

Interesting... possibly more to follow.