Losses at Missouri’s casinos went up more than 12% last month, compared to October of 2003. The State Gaming Commission reports gamblers left $126-million behind when they left the state’s 11 casinos. It’s the second-biggest month for gambling losses in Missouri since casinos went into operation. The biggest losers gambled at Harrah’s in Maryland Heights, which reported gamblers lost almost 19% more than they did in the same month last year.