Boston.com's senior producer Steve Silva's eyewitness account
and the footage he shot.
(Click on the blue title at the top to the full story and the video)
Steve Silva, a senior sports producer for Boston.com, the online publication of The Boston Globe, and a Boston marathon runner himself was at the finish line filming at the time of the explosion.
A professional journalist, the video Silva shot shows he was shooting and running toward the horrific disaster as it was happening, while others were (naturally) running away from it.
Read the report here from Boston.com's Robert Burgess interviewing Steve Silva about his eyewitness account of the tragedy.