A post marathon wedding proposal... After finishing his run, Gregory Picklesimer proposes to Carla White. (Jesse Costa/WBUR)Blade runners Andre Slay, Jeff Glasverenner and Chris Madison of Team Delta walk down Boylston Street after they receive their medals. (Jesse Costa/WBUR)Runners coming over the Mass Pike overpass at mile 25. (Jesse Costa/WBUR)Kevin Brown, the curator of the Marathon bombing memorial in Copley Sq last year was at the finish line today. (Jesse Costa/WBUR)Runners wrapped in space blankets walking down Boylston St. after the race. (Jesse Costa/WBUR)Runners head to the finish line. (AP Photo/Charles Krupa)Winner Meb Keflezighi makes his was through the crowd. (Jesse Costa/WBUR)Celebrating an American win in front of Marathon Sports, the site where the first bomb went off last year. (Jesse Costa/WBUR)Race fans congratulate Meb Keflezighi, of San Diego, Calif., on his win. (AP Photo/Elise Amendola)Meb Keflezighi, of San Diego, Calif., breaks the tape to win Boston Marathon. (AP Photo/Charles Krupa)Meb Keflezighi, of San Diego, Calif., heads toward the finish line. (AP Photo/Charles Krupa)Rita Jeptoo, of Kenya, hoists the trophy after winning the women's division of the 118th Boston Marathon. (AP Photo/Elise Amendola)Eunice Walerui and Jane Wanja of Kenya celebrate Jeptoo's win. They have been coming to the Boston Marathon for the past five years. (Jesse Costa/WBUR)Rita Jeptoo, of Kenya, celebrates her win in the women's division. (AP Photo/Charles Krupa)Rita Jeptoo, of Kenya, breaks the tape to win the women's division. (AP Photo/Charles Krupa)Rita Jeptoo racing through Coolidge Corner. (Sharon Brody/WBUR)Specators cheer for the marathoners at the Forum Bar, the site where the second bomb went off last year. (Jesse Costa/WBUR)Tatyana McFadden, of the United States, breaks the tape to win the women's wheelchair division.(AP Photo/Elise Amendola)Wellesley College students cheer as father and son Dick Hoyt and Rick Hoyt. (AP Photo/Mary Schwalm)Ernst Van Dyk, of South Africa, is presented the trophy after winning the wheelchair division. (AP Photo/Elise Amendola)Mobility-impaired runner Juli Windsor gets hi-fives from students lining the route at Wellesley College. (AP Photo/Mary Schwalm)Meb Keflezighi, of the United States, leads Josphat Boit, also from the United States, as they passed Wellesley College. (AP Photo/Mary Schwalm)Boston Marathon husband and wife bombing survivors Patrick Downes and Jessica Kensky, who each lost a leg in last year's bombings, roll across the finish line in the 118th Boston Marathon Monday, April 21, 2014 in Bostn. (AP Photo/Elise Amendola)Wheelchair racers coming through Kenmore. (Jesse Costa/WBUR)Shalane Flanagan leads the elite pack past Wellesley College. (AP Photo/Mary Schwalm)Elite women runners passing through Wellesley. (Delores Handy/WBUR)Spectators cheer on runners at the starting line in Hopkinton. (Joe Spurr for WBUR)Runners compete in the race. (AP Photo/Steven Senne)Runners in the first wave of 9,000 cross the start line. (AP Photo/Stephan Savoia)Elite men runners leave the start line in the 118th Boston Marathon. (AP Photo/Stephan Savoia)Ofelia and Andres Betancur of Malden hold up "B Strong" banners as Red Sox fans funnel into Fenway Park. (Jesse Costa/WBUR)MIT student volunteers Jeanne Yu, Alexandra Eyeroman and Anna Shafiro setting up a water station on Beacon Street, near Kenmore Sq. (Jesse Costa/WBUR)Boston Police check bags along the marathon route near Kenmore Sq. (Jesse Costa/WBUR)A Boston Police K-9 officer and his dog patrol with a National Guardsman, rear right, on Commonwealth Avenue. (AP Photo/Robert F. Bukaty)Elite women runners leave the start line of the 118th Boston Marathon. (AP Photo/Stephan Savoia)Mobility impaired runners leave the start line. (AP Photo/Stephan Savoia)Mobility-impaired runners gather at the start line for a moment of silence before the race. (AP Photo/Stephan Savoia)Final preparations before the race. (Joe Spurr/WBUR)Marathon hand cycle competitor in Hopkinton. (Joe Spurr/WBUR)Wheelchair racers preparing for the race. (Joe Spurr/WBUR)Father and son Boston Marathon race team Dick Hoyt, right, and his son Rick Hoyt walk across the start line as they warm up before they run. (AP Photo/Stephan Savoia)Selfie at the starting line. (Joe Spurr/WBUR)Security check point in Hopkinton. (Joe Spurr/WBUR)Police motorcycles driving through Hopkinton. (Joe Spurr/WBUR)Security officials at the Marathon starting line in Hopkinton. (Joe Spurr/WBUR)The sun rises on Marathon Day over the runners village in Hopkinton. (Joe Spurr/WBUR)2014 Boston Marathon