Seventeen-year-old Colorado student Claire Davis, who was shot in the head earlier this month by a gunman ather high school, has died at a hospital with her family at her side, the facility said in a statement.
Littleton Adventist Hospital posted on the facility's official Facebook page.
"Despite the best efforts of our physicians and nursing staff, and Claire's fighting spirit, her injuries were too severe and the most advanced medical treatments could not prevent this tragic loss of life,"
Ms Davis was the only person wounded by gunfire when Karl Pierson, an 18-year-old senior at Arapahoe High School in suburban Denver, entered the school on Dec. 13 and opened fire with a shotgun, police said.
She was shot in the face at point-blank range as she sat outside the library with a friend during in the 80-second rampage, police said.
Pierson committed suicide in the library as an armed deputy stationed at the school cornered him, police said.
"The Davis family would like to thank everyone who have sent their best wishes and prayers, and are grateful for the kindness and support of the community," the hospital statement said.