MGM owns Mandalay Bay, where the shooter used his 32nd-floor room to gather weapons and fire on the open-air crowd at the Route 91 Harvest Festival in 2017.
Jill Winter remembers the barrage of rapid-fire gunshots raining into a Las Vegas Strip country music concert crowd during what became the deadliest mass shooting in modern U.S. history four years ago. Like many around her, she thought at first it was fireworks. Then, people fell dead and wounded. Winter ducked for cover until police…