There was a major drug case, but RFG was not prosecuting it. When he disappeared, the case was being handled by Michael Madeira, who eventually replaced him.
That case ended with a conviction, and the main defendant, Taji "Verbal" Lee, is still in jail.
Thank you for clarifying that for me. For some reason, I was under the impression he had been involved with the case up until a few weeks/month before his disappearance, so I thought he had brought Madeira up to speed first, then left.
ftr, it's not that I think he is the kind of guy who would intentionally disappear. It's just that I want a scenario where he is still alive and well.