A man waits as the Tropicana Las Vegas goes on lockdown during an active shooter situation on the Las Vegas Strip in Las Vegas on Sunday, Oct. 1, 2017. Chase Stevens Las Vegas Review-Journal @csst …

A man waits as the Tropicana Las Vegas goes on lockdown during an active shooter situation on the Las Vegas Strip in Las Vegas on Sunday, Oct. 1, 2017. Chase Stevens Las Vegas Review-Journal @csstevensphoto