People attend a candlelight memorial for Las Vegas police officer Charleston Hartfield, Thursday, Oct. 5, 2017, in Las Vegas. Hartfield was killed when Stephen Craig Paddock broke windows on the Mandalay Bay resort and casino and began firing with a cache of weapons at a country music festival Sunday. Dozens of people were killed and hundreds were injured.
People attend a candlelight memorial for Las Vegas police officer Charleston Hartfield, Thursday, Oct. 5, 2017, in Las Vegas. Hartfield was killed when Stephen Craig Paddock broke windows on the Mandalay Bay resort and casino and began firing with a cache of weapons at a country music festival Sunday. Dozens of people were killed and hundreds were injured. John Locher AP Photo
People attend a candlelight memorial for Las Vegas police officer Charleston Hartfield, Thursday, Oct. 5, 2017, in Las Vegas. Hartfield was killed when Stephen Craig Paddock broke windows on the Mandalay Bay resort and casino and began firing with a cache of weapons at a country music festival Sunday. Dozens of people were killed and hundreds were injured. John Locher AP Photo

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