Best friends remember 9-year-old slain in Tucson

By AMANDA LEE MYERS | January 8, 2012 | 8:03 PM EST

Dancers from the Tucson Dance Academy perform during an interfaith remembrance service for the victims of the 2011 shootings that left six dead and 13 injured, including Rep. Gabrielle Giffords, at St. Augustine Cathedral, Sunday, Jan. 8, 2012 in Tucson, Ariz. (AP Photo/The Arizona Republic, Pat Shannahan) MARICOPA COUNTY OUT; MAGS OUT; NO SALES

TUCSON, Ariz. (AP) — Three little girls made plans for the future. They built sandcastles, they danced, they swam, they laughed, they swore to be roommates in college.

Two of the girls, now 10, stood Sunday on a stage in Tucson and told a crowd of hundreds, many weeping, about their friend. Christina-Taylor Green, a 9-year-old born on Sept. 11, 2001, aspired to dance with Beyonce, to be the first woman in Major League Baseball and one day be elected president United States.

Christina died a year ago, one of six people killed in a deadly shooting rampage targeting U.S. Rep. Gabrielle Giffords.

Jamie says she knows Christina would want those she loved to be happy.

Serenity added that even if they're not physically together, the three girls will be "best friends for eternity."