"She was a talented young girl with a bright promising future. Her untimely death weighs heavily on our hearts," read the statement. "Our thoughts and prayers are with all the families affected by yesterday's horrific shooting."
A Facebook group in memory of Christina-Taylor has been inundated by messages left by strangers devastated over the young girl's death.
One person wrote, "There are no words to comfort the loss of a child by needless violence. May time heal your pain."
Another message read, "From Joint Base Balad, Iraq -- my deepest condolences to the family over the loss of this young patriot and hero. With much sadness, very respectfully James J. Galluzzo III, Major US Army."
Green said she hopes that her daughter's death brings change to the political landscape in the United States.
"All I want is awareness and change, just like Christina would," Green said.
"Things like this should never, ever happen again," she said. "I want there to be a stop for the violence and hatred and all the bashing of politicians isn't not helping, and it's not working."