Las Vegas UFO mystery deepens as cops install high-tech surveillance cameras at home where residents reported seeing 10 foot aliens with large shiny eyes. Doug Papa a former police officer who has been following the story of the mysterious object falling from the sky said it baffled him when the Las Vegas police department placed surveillance cameras outside he interviewed the family who made the call and they told him that the cops installed the camera to quote protect them from UFO fanatics who might bother them.