Dear Delusional Lunatic,
You accomplished on your own everything I had hoped to and more. When I set my sights on sabotaging your project, I never imagined things could have possibly turned out so well.
Thanks for finishing what I started. I only wish I could take credit, but you hit the self-destruct button all by your lonesome, depraved, delusional self.
Good luck screwing over your entire staff. I'm sure they deeply appreciate what you've done.