Absolutely nothing happens to them. No punishment. Because "God" does not exist and it's about time for you people to admit it.

Hitler was a Roman Catholic.

Oh, and the holy spirit isn't holy. I deny the holy spirit. He's a bad guy. He's always late on his rent, he robbed a liquor store, he beats his girlfriend, he tortures his cat, I saw him mug an old woman once, and he is also having an affair. With a man. That's not right, he's lying to his girlfriend. He laughs at funerals, he eggs old folks' homes, and he paints graffiti on preschools, and he's cheating on his taxes. Not a good guy, that's for sure.

There. Ooooh, I'm so scared.