LAS VEGAS (KGO) -- The Las Vegas gunman's girlfriend, Marilou Danley, arrived back in the United States Monday night.
She arrived in Los Angeles International Airport from the Philippines and was met by federal agents.
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Las Vegas police call her a person of interest and they hope she can provide them with valuable clues.
Officials still haven't determined a motive for why Stephen Paddock opened fire from the 32nd floor of the Mandalay Bay Hotel.
Agents from the San Francisco offices of the FBI and ATF are in Las Vegas investigating the shooting.
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Shooter's girlfriend, person of interest in Las Vegas shooting arrives back in the United States
LAS VEGAS MASS SHOOTING