A single rose is left at the door of the Mandalay Bay hotel and casino in Las Vegas, Nev., on Tuesday, Oct. 3, 2017. A gunman opened fire on an outdoor music concert on Sunday. It was the deadliest mass shooting in modern U.S. history, with dozens of people killed and hundreds injured, some by gunfire, some during the chaotic escape.
A single rose is left at the door of the Mandalay Bay hotel and casino in Las Vegas, Nev., on Tuesday, Oct. 3, 2017. A gunman opened fire on an outdoor music concert on Sunday. It was the deadliest mass shooting in modern U.S. history, with dozens of people killed and hundreds injured, some by gunfire, some during the chaotic escape. John Locher AP
A single rose is left at the door of the Mandalay Bay hotel and casino in Las Vegas, Nev., on Tuesday, Oct. 3, 2017. A gunman opened fire on an outdoor music concert on Sunday. It was the deadliest mass shooting in modern U.S. history, with dozens of people killed and hundreds injured, some by gunfire, some during the chaotic escape. John Locher AP