By Larry Fine KANSAS CITY Missouri - Bill Butler grumbled about a lost opportunity in Kansas City's opening defeat in the World Series. The designated hitter took matters into his own hands on Wednesday by supplying a pair of key hits to help the Royals claim a 7-2 victory over the San Francisco Giants that tied the best-of-seven series 1-1. "I felt like definitely it was a must-win for us," said Butler as he and his team mates head for San Francisco for Game Three on Friday. ...