A public memorial service was held at Heritage High School in Leesburg, VA on Wednesday night for Gabriella Miller, a 10 year-old childhood cancer awareness advocate who died late Saturday night of brain cancer.

LEESBURG, VA - OCTOBER 30: Thousands of paper flowers were brought to the memorial. A public memorial service was held at Heritage High School in Leesburg, VA on Wednesday night for Gabriella Miller, a 10 year-old childhood cancer awareness advocate who died late Saturday night of brain cancer. Gabriella became a nationally recognized activist/public speaker/fundraiser in the last year of her life, rallying support throughout the local community and from people across the world for cancer awareness/research. (Photo by Sarah L. Voisin/The Washington Post via Getty Images)