She was reportedly taking his picture in March at the gym when he accused her of trespassing on private property and he allegedly grabbed her camera and took the memory card.
Rob says he lashed out because the photog trespassed onto private property to take the photos.
Viak filed a robbery report at the time and subsequently sued Rob for robbery and assault prior to the criminal complaint being filed.
The Kardashian’s rep did not respond to a request for comment.
Rob Kardashian appeared with his lawyer, Robert Shapiro in court this morning and formally pled not guilty to all charges.