Investigators are looking into two key pieces of evidence that seem to suggest that Las Vegas shooter Stephen Paddock was not entirely alone in his Mandalay Bay hotel room.

The first is a cell phone charger that does not match any of the devices that belonged to the gunman.

The second is a hotel record showing that one of Paddock's key cards was used to access his room while his car was outside of the hotel's parking garage.

Here's the latest story on that development: