Boston University students Katie Davidoff (left) and Sammi DeMar cheered on the first runners coming through Kenmore Square. Davidoff said she was out to support her friend, Erin Carbonneau, who ran in today's marathon.
Spectator photos
Boston University students Katie Davidoff (left) and Sammi DeMar cheered on the first runners coming through Kenmore Square. Davidoff said she was out to support her friend, Erin Carbonneau, who ran in today's marathon.
(Boston.com Staff Photo / Courtney Hollands)