By BU News Service
BU News Service
Spectators wait for runners near the finish line of the Boston Marathon on April 15, 2019. (Photo by Li Yang/BU News Service) 
Fans wait for marathon athletes near the finish line of the Boston Marathon on April 15, 2019. (Photo by Li Yang/BU News Service) 
A spectator holds up a hand-made poster at the Boston Marathon on April 15, 2019. (Photo by Li Yang/BU News Service) 
A police officer is maintaining security at the finish line of the Boston Marathon on April 15, 2019. (Photo by Li Yang/BU News Service) 
The wheelchair lead male competitor approaches the finish line of the Boston Marathon on April 15, 2019. (Photo by Li Yang/BU News Service) 
A wheelchair competitor speeds past spectators during the 2019 Boston Marathon on Monday, April 15, 2019. (Photo by Li Yang/BU News Service) 
Several wheelchair competitors rush to the finish line of the Boston Marathon on April 15, 2019. (Photo by Li Yang/BU News Service) 
A wheelchair competitor passes near Copley Square during the Boston Marathon on April 15, 2019. (Photo by Li Yang/BU News Service) 
A spectator rings a bell to cheer for the runners. (Photo by Li Yang/BU News Service) 
A wheelchair competitor in red rushes to the finish line of the Boston Marathon on April 15, 2019. (Photo by Li Yang/BU News Service) 
Fans cheer for the upcoming runners at the Boston Marathon on April 15, 2019. (Photo by Li Yang/BU News Service) 
Wheelchair competitors getting closer to the finish line on Boylston Street as they head down Beacon Street during 2019 Boston Marathon on Monday, April 15, 2019. (Photo by Xingyu Wu/BU News Service) 
The women’s Wheelchair competitors depart from the starting line in Hopkinton, Massachusetts, April 15, 2019. (Photo by Alex MacDougall/BU News Service) 
Hendrik Janssen of Germany (red and white shirt) takes off with other runners from the start of the Boston Marathon in Hopkinton, Massachusetts, April 15, 2019. (Photo by Alex MacDougall/BU News Service) 
American Byron Solberg wears a crab hat as he leaves from the starting line in Hopkinton, Massachusetts, April 15, 2019. (Photo by Alex MacDougall/BU News Service) 
Keith Straw of the United Kingdom wears a bright running outfit in Hopkinton, Massachusetts, April 15, 2019. (Photo by Alex MacDougall/BU News Service) 
Michael Leigh (blue) of the USA smiles as he starts his 26.2-mile long run in Hopkinton, Massachusetts for the Boston Marathon on April 15, 2019. (Photo by Alex MacDougall/BU News Service) 
Sara Hall of California runs in the 2019 Boston Marathon. (Photo by Huibao Hou/BU News Service) 
Sharon Cherop of Kenya runs past Kenmore Square during the 2019 Boston Marathon. (Photo by Huibao Hou/BU News Service) 
Caroline Rotich, 34, of Kenya, runs in the 2019 Boston Marathon. (Photo by Huibao Hou/BU News Service) 
2018 Boston Marathon winner Desiree Linden runs in the 2019 Boston marathon. (Photo by Huibao Hou/BU News Service) 
Jordan Hasay runs in the 2019 Boston Marathon. (Photo by Huibao Hou/BU News Service) 
Handcyclist Patrick Cogan of Lynn, Massachusetts, competes in the 2019 Boston Marathon. (Photo by Huibao Hou/BU News Service) 
A wheelchair competitor passes by spectators near Kenmore Square during the Boston Marathon on April 15, 2019. (Photo by Huibao Hou/BU News Service) 
Jason Fowler, 45, from Boston, Massachusetts, races to the finish line at the Boston Marathon on April 15, 2019. (Photo by Mariya Amrayeva/BU News Service) 
A spectator cheers for the runners arriving near the finish line during the Boston Marathon on April 15, 2019. (Photo by Mariya Amrayeva/BU News Service) 
Worknesh Degefa, of Ethiopia, runs her last mile to the finish line during the Boston Marathon on April 15, 2019. (Photo by Mariya Amrayeva/BU News Service) 
Edna Kiplagat of Kenya runs in the 2019 Boston Marathon. (Photo by Huibao Hou/BU News Service) 
Anthony Robinson from Akron, Ohio, racing on Beacon and St. Mary Street during the Boston Marathon on April 15, 2019. (Photo by Zi Gong/BU News Service) 
Workdesh Degefa, the winner of the women’s division marathon, runs on Beacon and St. Mary Street. (Photo by Zi Gong/BU News Service) 
Spectators cheer on runners in Kenmore Square during the Boston Marathon on April 15, 2019. (Photo by Xi Qin/BU News Service) 
Brad Smith, of Georgia, rushes through Kenmore Square during the Boston Marathon on April 15, 2019. (Photo by Xi Qin/BU News Service) 
Kate Landau, of Florida, passes through Kenmore Square during the Boston Marathon on April 15, 2019. (Photo by Xi Qin/BU News Service) 
Sara Hall, of Arizona, passes through Kenmore Square during the Boston Marathon on April 15, 2019. (Photo by Xi Qin/BU News Service) 
The three leading male runners – Lawrence Cherono of Kenya, Lelisa Desisa of Ethiopia, and Kenneth Kipkemoi of Kenya – pass through Kenmore Square during the Boston Marathon on April 15, 2019. (Photo by Xi Qin/BU News Service) 
Geoffrey Kirui of Kenya passes through Kenmore Square during the Boston Marathon on April 15, 2019. (Photo by Xi Qin/BU News Service) 
Peter Bromka from Portland Oregon competes in the Boston Marathon on April 15, 2019. (Photo by Dave Sebastian/BU News Service) 
Male runners approach Kilometer 35 of the Boston Marathon on April 15, 2019. (Photo by Dave Sebastian/BU News Service) 
Laurent Michellier approaches Kilometer 35 of the Boston Marathon on April 15, 2019. (Photo by Dave Sebastian/BU News Service) 
Male runners approach Kilometer 35 of the Boston Marathon on April 15, 2019. (Photo by Dave Sebastian/BU News Service) 
Runners participate in the Boston Marathon on April 15, 2019. (Photo by Delong Ye/BU News Service) 
Runners head for the 40k spot at Kenmore Square for the Boston Marathon on April 15, 2019. (Photo by Delong Ye/BU News Service) 
Runners head for the 40k spot at Kenmore Square for the Boston Marathon on April 15, 2019. (Photo by Delong Ye/BU News Service) 
Biruktayit Eshetu participates in the Boston Marathon on April 15, 2019. (Photo by Delong Ye/BU News Service) 
Edna Kiplagat participates in the Boston Marathon on April 15, 2019. (Photo by Delong Ye/BU News Service) 
Zan Qi displays Chinese flags to support Chinese runners near the 40 kilometer spot at the Boston Marathon on April 15, 2019. (Photo by Delong Ye/BU News Service) 
The de Leon family at the 2019 Boston Marathon. (Photo by Delong Ye/BU News Service) 
Saif, a student from MCPHS, waits for his professor Adrian Wong, who is running in the Boston Marathon on April 15, 2019.(Photo by Delong Ye/BU News Service) 
Carols Marra and his one-year old baby Maria Teresa are waiting for runner Aline Rocha at the Boston Marathon on April 15, 2019. (Photo by Delong Ye/BU News Service) 
Sho Watanabe advances down Beacon street. (Photo by Delong Ye/BU News Service) 
Sho Watanabe participates in the Boston Marathon on April 15, 2019. (Photo by Delong Ye/BU News Service) 
Masazumi Soejima participates in the Boston Marathon on April 15, 2019. (Photo by Delong Ye/BU News Service) 
Officer Kenwood and his dog Beru at the intersection of Park Drive and Beacon Street at the Boston Marathon on April 15, 2019. (Photo by Delong Ye/BU News Service) 
From left to right: Patti, Jenny and Diane are waiting for runner Stephanie Labelle. They flew all the way from Minnesota to support her on April 15, 2019 at the Boston Marathon. (Photo by Delong Ye/BU News Service) 
Scott Fauble, 27, an elite male runner from Flagstaff, Arizona, runs his last mile to the finish line at the Boston Marathon on April 15, 2019. (Photo by Mariya Amrayeva / BU News Service) 
Meskerem Assefa, 27, an elite female runner from Ethiopia, approaches the finish line at Boston Marathon on April 15th, 2019. (Photo by Mariya Amrayeva/ BU News Service) 
Jordan Hasay, 27, an elite female runner from Arroyo Grande, California, approaches the finish line of the Boston Marathon on April 15th, 2019. (Photo by Mariya Amrayeva / BU News Service) 
A hand cyclist approaches the finish line at the Boston Marathon on April 15, 2019. (Photo by Mariya Amrayeva/BU News Service) 
Multiple generations of families gathered to cheer on their loved ones near the finish line at the Boston Marathon on April 15, 2019. (Photo by Mariya Amrayeva/BU News Service) 
Dustin Baker, 38, from Fletcher, North Carolina, completes his last mile before approaching the finish line at the Boston Marathon on April 15, 2019. (Photo by Mariya Amrayeva/BU News Service) 
Joey Gibbs, 22, from Urbana, Illinois, is near the finish line at the Boston Marathon on April 15, 2019. (Photo by Mariya Amrayeva/BU News Service) 
The three leading male runners – Lawrence Cherono of Kenya, Lelisa Desisa of Ethiopia, and Kenneth Kipkemoi of Kenya – pass through Beacon Street during the Boston Marathon on April 15, 2019. (Photo by Xinyu Wu/BU News Service) 
Spectators cheer for a male athlete who runs while pushing a wheelchair participant at Beacon Street (Photo by Xinyu Wu/BU News Service) 
Runners advance through the marathon course as spectators cheer in excitement. (Photo by Sahana Sreeprakash/BU News Service) 
Caroline Rotich, of Kenya, runs at a set pace during this year’s Boston Marathon. (Photo by Sahana Sreeprakash/BU News Service) 
Geoffrey Kirui, of Kenya, pushes through the final lengths of the marathon. (Photo by Sahana Sreeprakash/BU News Service) 
Spectators cheer for marathon competitors near Copley Square. (Photo by Sahana Sreeprakash/BU News Service) 
Spectators express their support at the 2019 Boston Marathon. (Photo by Sahana Sreeprakash/BU News Service) 
Wheelchair race participant displays emotion. (Photo by Sahana Sreeprakash/BU News Service) 
Worknesh Degefa, 28, of Ethiopia, maintains a lengthy distance between herself and other runners. (Photo by Sahana Sreeprakash/BU News Service) 
Police officers maintain security around Kenmore Square.(Photo by Sahana Sreeprakash/BU News Service) 
Racers in the men’s wheelchair competition push ahead in hopes to complete the marathon. (Photo by Sahana Sreeprakash/BU News Service) 
Tom Davis, a handcyclist, works his way to the finish line of the 2019 Boston Marathon finish line. (Photo by Sahana Sreeprakash/BU News Service) 
The Boston Marathon continues through Charlesgate Park as the sun breaks through the clouds Monday afternoon. (Photo by Jude Kinne/ BU News Service) 
Despite the fluctuating New England weather, about 30,000 people run down Commonwealth Avenue in the Boston Marathon each year. (Photo by Jude Kinne/ BU News Service) 
A runner high fives spectators on Commonwealth Avenue during the 2019 Boston Marathon. (Photo by Jude Kinne/ BU News Service) 
Miguel Nuno surprises his girlfriend mid-marathon with a marriage proposal on the 800 block of Beacon Street. (Photo by Sofia Saric/BU News Service) 
Miguel Nuno surprises his girlfriend mid-marathon with a marriage proposal on the 800 block of Beacon Street. (Photo by Sofia Saric/BU News Service) 
Dean Furness from Saint Charles, Iowa, races on Heartbreak Hill, the final ascent of the 2019 Boston Marathon, Monday, April 15, 2019. (Photo by Rachel Rock/BU News Service) 
Sarah Sellers from Tucson Arizona runs on Heartbreak Hill, the final ascent of the 2019 Boston Marathon, Monday, April 15, 2019. In the 2018 Boston Marathon, Sellers, an amateur runner, finished in second place. (Photo by Rachel Rock/BU News Service)
This post will be updated through out the day.
