Gabriella Miller and her mother, Ellyn Miller, surrounded by some of the 250,000 letters to Santa that her story inspired last Christmas. (Courtesy of Miller family)

The story of Gabriella Miller, at nine years old raising the funds for 36 kids to take Make-A-Wish trips, was so inspiring that the Loudoun County Board of Supervisors honored her as the county’s Volunteer of the Year. She did so while battling, and seemingly beating, an inoperable brain tumor.

The Post’s Caitlin Gibson captured every key moment in the story, including the final heartbreaking turn over the weekend; Gabriella died Saturday night, at the age of 10.

Diagnosed last November, Gabriella quickly made her mark by getting 250,000 letters to Santa delivered to the Make-A-Wish Foundation, which in turn secured the funds for dozens of other children to go on trips. Gabriella then began working elsewhere to raise awareness and funding for pediatric cancer. There are more details in Gibson’s story, which you must read here.

But first, watch this 10-year-old girl speaking like a savvy adult about the need for actions, not words, in this outtake from an upcoming documentary. What a tremendous loss.