By Police1 Staff
BOSTON — Video footage from the scene of the Boston Marathon shows the two explosions that left at least two people dead and dozens more injured Monday.
The cause of the explosions has yet to be identified. The first blasts took place about four hours after the start of the men’s race.
Report said that a loud explosion was heard on the north side of Boylston Street, near a photo bridge that marks the finish line, followed by another explosion moments later.