The 9-year-old girl killed by a gunman who opened fire at an Arizona congresswoman's event is the granddaughter of former major league baseball manager Dallas Green, The Philadelphia Phillies said Sunday.

Christina-Taylor Green was shot outside a Tucson grocery story when she went to see Rep. Gabrielle Giffords, who was meeting with constituents there. Giffords was among 13 people wounded in the melee that killed six people, including Arizona's chief federal judge and an aide for the Democratic lawmaker.

"The Phillies organization expresses our heartfelt condolences to Dallas and Sylvia and the entire Green family on the senseless, tragic loss of Christina's life," team president David Montgomery said. "She was a talented young girl with a bright promising future. Her untimely death weighs heavily on our hearts. Our thoughts and prayers are with all the families affected by yesterday's horrific shooting."

An uncle of the 9-year-old girl told the Arizona Republic that a neighbor was going to the event and invited her along because she had just been elected to the student council and was interested in government.

Dallas Green is a former pitcher and manager in the major leagues. He's an executive advisor for the Phillies, the team he managed to the World Series championship in 1980.