Despite Mandalay Bay shooter Stephen Paddock’s history of high-stakes gambling, he had no known gambling debts, Clark County Sheriff Joe Lombardo said Tuesday. And, contrary to published reports, Paddock’s girlfriend, Marilou Danley, told investigators in Los Angeles she had no concerns about his mental health. In an extensive interview Tuesday with the Las Vegas Review-Journal, Lombardo clarified those details and provided new information about the Oct. 1 shooting that killed 58 concertgoers and left nearly 500 injured. The sheriff said investigators have made contact with Paddock’s entire “family tree,” including the shooter’s two ex-wives. Their conversations have shed new light...