Who was Steve Paddock?

Stephen Paddock was the man who killed at least 58 country-music concert-goers in Las Vegas on Sunday. What more do we know? Sheriff Joe Lombardo says he was leading a "secret life." Paddock’s surviving brother Eric, struggles to understand. He called his brother a gambler, but said that, "Steve took care of the people he loved. He helped make me and my family wealthy. He's the reason I was able to retire three years ago when I got really burned out doing the job that I did. I mean this is the Steve we know, we knew." Matt Pearce, national reporter for the Los Angeles Times, says new information that has come to light raises more questions than answers.