I'm more concerned with whether or not he's going to chew my arm off once I've found him. I'll leave the actual reconnaissanse to someone who has the manpower that can deal with that sort of situation- and once that's dealt with, I'll concern myself with the why.

Well. Then my suggestion is go back to where it all began and go from there- surely someone might be able to point you in the appropriate direction. If he hasn't actively started hurting anyone yet, if that's even his intent, then you have the time, although that could very well not be the case for very long.