Why wait? You have contacted him numerous times already. I would throw the dagger now! If he had good character, he would have contacted you by now.
I will tell you that RJ will not get involved in any way, unless you have already been to court and have your documentation that the scammer was convicted of running a scam thru RJ. It bothers me a bit that RJ doesn't get involved when a person/company is accused by multiple people that they have been conned.
Having said that, Paul, I know you are reading this........I understand that it could bring huge legal consequences down on the company. That would not be good.
I am in no way talking bad about RJ, it is a great site if used correctly!
I am just stating what I know, yes, I was told this by RJ administration.
If you follow the advice of the forum sharks, you may fare well in the end.
Good luck.