"Throughout his life, [Stephen] Paddock went to great lengths to keep his thoughts private, and that extended to his final thinking about this mass murder," officials said on Tuesday.
Police investigating the October 2017 attack said they've been able to answer the "who, what, when, where and how" of the massacre, but as the probe ends, officials cannot explain the "why."
Slide Fire will stop taking orders and halt manufacturing of the rapid-fire gun products. It is facing a class-action lawsuit for negligence, and the government is pursuing a ban on the devices.
Stephen Paddock, the 64-year-old retired accountant and real estate investor, looks like an ordinary hotel guest and casino patron in footage released by the Mandalay Bay resort.
Douglas Haig was charged with manufacturing and selling illegal bullets to Stephen Paddock before the gunman killed 58 people in Las Vegas.
The lack of a motive and other suspects persisted despite looking into nearly 2,000 leads and sifting through thousands of hours of video, police say in a newly released investigation report.
Hundreds of pages of newly-released court documents reveal what authorities knew and the leads they were chasing in the days following the attack, but offer little on motive.
Nearly all of the fatalities were caused by a single gunshot wound, though six died from multiple wounds. The deaths were all ruled homicides.
Defendants in the suits include MGM Resorts International, which owns the Mandalay Bay, and Live Nation, the organizer of the country music festival at which 58 people were killed last month.
The weekend before his brutal attack, Stephen Paddock rented a room above a different Las Vegas music festival. And a man with the same name booked a Chicago hotel room during Lollapalooza.