The problem here is that this guy is going to face lawsuits an criminal charges like his "operator" son. The FBI had better ensure he returns to face the proper justice he deserves. BUT, this guy is a dirt bag and will threaten the FBI that he will reveal sources and methods of the sting operations he was paid for - a Mexican standoff or American Justice, we'll see.
This guy has disappeared into the ether. He is NEVER going to show up. Those "great people" at the FIB have let another one go and have no intentions of getting him back.