I saw this episode when it originally aired.
Even if he's steering clear of other JWs, I have to agree with the investigator's assessment: he'll latch on to any group where his knowledge of the bible will make him accepted, and where he will be able to hunt for new victims at will.
I seriously doubt that he's still in the US. He had enough money through the sale of his businesses and other assets that he could be somewhere that the broadcast would not be easily seen or accessible.