Why Investigators Got No Clues From Vegas Shooter's Laptop

Investigators had hoped a laptop found in the Las Vegas hotel room from which Stephen Paddock killed 58 people and wounded 500 more would shed light on his motive. But there was a problem: the hard drive was missing. ABC News reports investigators believe Paddock removed the hard drive before fatally shooting himself Oct. 1, and it has yet to be found. Even if it is found, there's no guarantee there's anything on it. Investigators say Paddock at some point before the shooting bought software that erases files from hard drives. Paddock isn't the first mass killer to have made his hard drive disappear, but unlike many other such killers, he also didn't leave behind a note, manifesto, or really any clue as to the motive behind his crime. (On Wednesday, Paddock's brother was arrested on child pornography charges.)