Twenty-eight-year-old Christopher Sarver of Newark was arrested Monday and charged with robbery and assault. He was released after posting $10,000 secured bail.
Police say on April 6, the victim had left the casino and was walking through the parking lot when he was approached from behind by the robber.
The robber threw the victim to the ground and took his wallet from his pocket. The suspect fled in a car.
The victim suffered minor injuries.