1,600 rounds of ammo, 50 pounds of explosives material found in Las Vegas shooter's car: police

LAS VEGAS -- (KTLA) -- Chilling new clues suggest the man behind the deadliest mass shooting in modern US history planned to inflict even more carnage.

Stephen Paddock didn't just have 23 weapons in his Mandalay Bay hotel suite, which he turned into a sniper's nest to kill 58 concertgoers in Las Vegas. He also had 50 pounds of explosives material and 1,600 rounds of ammunition in his car in the hotel parking lot, police said.

Investigators now believe Paddock intended to survive the massacre, Las Vegas police Sheriff Joseph Lombardo said.

“He was doing everything possible to see how he could escape,” Lombardo said, declining to detail specifics.

But what motivated Paddock to kill dozens of strangers — and where he planned to strike next — remain a mystery.

A new timeline

New evidence shows Paddock fired his first shots into the Route 91 Harvest music festival at 10:05 p.m. Sunday — three minutes earlier than what police previously reported, according to investigators.

For 10 minutes, Paddock sprayed hundreds of bullets into the crowd about a quarter mile away. The shots pummeled the gathering of 22,000 people with devastating speed, due to the help of bump-fire stocks, legal accessories that make weapons fire similarly to an automatic rifle.