Revenue generated by Hollywood Casino Columbus and Scioto Downs Racino increased in September from a year earlier and put Columbus' two gambling venues on track through three quarters of 2015 to surpass last year's haul. Hollywood Casino on the city's west side pulled in $17.3 million last month after paying out winnings to gamblers, show data released Wednesday by the Ohio Casino Control Commission. The month's revenue, taxed at the state's 33 percent rate, was up 10 percent from a year...