Updated at 5:40 p.m. ET
The company that owns the Mandalay Bay Resort and Casino in Las Vegas has asked federal courts to declare that it is not liable in the October 2017 mass shooting carried out by a gunman staying at Mandalay Bay.
Stephen Paddock stayed at the resort for several days before he opened fire on the Route 91 Harvest music festival. Aiming from the windows of his 32nd-floor hotel room, he killed 58 people and injured hundreds.