Horn-Miller’s public life began in 1990 at the age of 14. During the Oka Crisis, she protested the planned development of condos and a golf course on traditional Kanien’kehá:ka (Mohawk) lands and burial grounds near Montreal. After nearly 80 days of stand-off with the RCMP and armed forces, she was stabbed in the chest by a Canadian soldier wielding a bayonet. The image of her wounded, holding her young sister, was shared across national media—and further galvanized Canadians to better understand, and care about, Indigenous issues. This near-death experience marked a turning point in her life. Instead of succumbing to very real traumas, including PTSD, she found the strength to pursue, and achieve, incredible things. One of Horn-Miller’s greatest achievements has been in athletics. After winning gold with her water polo team at the Pan Am Games in 1999, and after winning MVP of the Canadian Senior Women’s Water Polo National Championships, she became the first Mohawk woman from this country to ever compete in the Olympic games, co-captaining Team Canada in Sydney in 2000. That same year, she appeared on the cover of TIME magazine. She went on to win bronze at the 2001 FINA World Championships and became a torchbearer for the Winter Olympics in Turin. She has been named one of Canada’s most influential women in sport by the Canadian Association for the Advancement of Women and Sport and Physical Activity.