NYT: How the Las Vegas Gunman Planned a Massacre, in 7 Days of Video
Using exclusive surveillance footage obtained from MGM Resorts, we pieced together the last days of Stephen Paddock, the Las Vegas gunman. He plays video poker, laughs with hotel staff and hauls bag after bag of weapons into his suite.
The Times calls it a visual investigation. Surveillance videos obtained by the NYT show the methodical planning of a massacre.