Oksana Grigorieva’s security guard is a fake! The man, named Kristian Herzog, said he used to work for Jack Nicholson who was also happened to be paying him. Why would Jack Nicholson pay for a bodyuard to Oksana? In short, he didn’t!

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Kristian is a fake, and a felon to boot! How nice that he was around.

We know Kristian Otto Herzog — a twice-convicted felon who impersonated a cop with a loaded firearm — told Mel Gibson’s baby mama he would protect her free of charge, because Jack was graciously covering the bills.

Herzog showed Oksana this photo — posted on his Facebook page — to show he’s done work for Nicholson in the past.

The photo was taken at The Ivy restaurant. But we’re told Nicholson doesn’t know Herzog from Adam … and Herzog just inserted himself in the photo as Jack was leaving the restaurant.

That’s kind of scary. The judge ruling over the Mel Gibson and Oksana fiasco granted a restraining order on Kristian, keeping him away from everybody. Wouldn’t you want to see more references if you were Oksana?

Photos: Fame

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