Lewiston boy runs again, after losing his leg in an accident Gavin says he hopes to run a marathon some day. and last updated 2021-01-11 00:25:52-05 LEWISTON, N.Y. (WKBW) â The Burns are a fun-loving family from Lewiston. Their fun was put on hold on the first day of June in 2018. âItâs a horrible vivid memory in our,â said Jackie Burns. Jackie is Gavinâs mother. He was 10 in 2018. His leg was injured by a lawn mower. He was flown by Mercy Flight to the hospital and his leg was amputated. Not long after, he said heâd like to do one thing.