The Hoyts are a well-known entity at the Boston Marathon. The father-son duo has competed together for 34 years in over 1,000 distance races. The elder Hoyt, 73-year-old Dick, pushes his son Rick, who was born with a severe form of cerebral palsy.
The pair completed their first Boston Marathon in 1981, and had planned for 2013 to be their last.
"Because of the tragedy we plan to honor those who were killed and injured by running one last time," Rick says in the video above, a tribute to the Hoyts presented at Wednesday night's ESPY awards, where they were given the the Jimmy V Award for Perseverance.