No seriously. He is.

Isaac Freedman used to be just this old cook that I buy my coke from. Nice enough guy, I guess. Didn't really know anything about him until recently—but he definitely was a little cooky.

Think: "Dumbledor—but, like, if Dumbledor did a ton of candyflipping in the 90s and now he goes under a different name cause he believes the CIA has it out for him, so he never leaves his house and usually doesn't even put pants on, and he somehow has the best coke hook-up in the Midwest.
This story was first published in the collection "Absent Thoughts Dressed in Black"