In the case of last year’s bombing, authorities suspect it was carried out by Tamerlan and Dzhokhar Tsarnaev, two brothers from Dagestan who lived in the U.S. Tamerlan was killed in a shootout with police days after the explosions and Dzhokhar, his little brother, was arrested and has pleaded not guilty to 30 counts related to the bombing. If convicted, he could face the death penalty.
A full 36,000 runners signed up to race this year, undeterred by last year’s tragedy, including last year’s winners Lelisa Desisa from Ethiopia and Rita Jeptoo from Kenya.
“So I came here to support the whole injured and all the families [of the] lost ones,” Jeptoo told ABC News. “I’m not scared because I know there is security.”