Surveillance video shows Las Vegas gunman days before massacre

Hotel surveillance video from the days before the deadliest mass shooting in modern U.S. history, made public Thursday, shows the gunman as an unremarkable Las Vegas hotel guest and casino patron.Footage provided by MGM Resorts International shows Stephen Paddock interacting with Mandalay Bay resort staff members, wheeling suitcases toward elevators and pulling his Dodge Caravan into the hotel valet.It offers no outward sign that Paddock would carry out the Oct. 1 shooting that killed 58 people