“Be assured, Wynn will not sit idly by when anyone engages in mayhem or flouts government-imposed safety measures in violation of Nevada law,” the civil complaint read. The lawsuit was filed by Wynn Las Vegas, which operates Encore. (Rachel Aston/Las Vegas Review-Journal) for a Las Vegas Strip property took an unusual step Friday of lodging a trespassing lawsuit against 20 unknown people in the wake of a Labor Day weekend fight that broke out at Encore. Encore and Wynn in Las Vegas, March 16, 2020.