As with Zaki's invented story, where he cannot be sued successfully unless the Palins as public figures can prove that he knew the story was false (a high standard when he might not have been certain, even if there is evidence that he made it up), your "slander" cannot lead to a successful lawsuit. Zaki is also a public figure and thus subject to the unreasonably high standards of proof before you can be sued successfully.
He makes stuff up, I make stuff up. Fair is fair. I can even doctor an image or two to make it read betterer.