Professional dancer Adrianne Haslet-Davis crossing the finish line of the 118th Boston Marathon in 2014 using a prosthetic leg.
Professional dancer Adrianne Haslet-Davis crossing the finish line of the 118th Boston Marathon in 2014 using a prosthetic leg. Charles Krupa AP
Professional dancer Adrianne Haslet-Davis crossing the finish line of the 118th Boston Marathon in 2014 using a prosthetic leg. Charles Krupa AP