I remember some of the ads he did for various guitar companies, I think there was some string companies in there too. I didn't know that CC Deville had left/been booted from Poison, till I saw Richie on an album of theirs. Then I didn't know he'd been canned either till I saw the Rockumentary on the group....
I believe it was Rickie Rockett (sp?) that I'm about to paraphrase:
"Richie was doing OK in the band, and we were all happy with him. Till one day he and my fiance came to me and told me that they'd been having a torrid love affair for quite a long time behind my back.
The last thing I ever heard or saw from Richie Kotzen was him climbing over a chain-link fence after we pulled the bus off the road, and threw his bags out on the grass. And he was climbing over the fence as we pulled off."