Focus, man, focus.
Don't worry about the rogue email or trojan or virus, it's the Democrat that I'm worried about.
If I email you, along with the rest of my email list, a Christmas card, you'll have those names on your computer. It is possible that the program collected your brothers contacts from your uncle's computer that way. In any case, your uncle needs to have his computer cleaned up asap. And that Democrat .... well, I say send him a couple of Coulter books.