Investigators Seek Video, Photos, Eye Witness Accounts from Marathon

An area of 12 blocks around the Boston Marathon finish line -- reduced from 15 blocks yesterday -- continues as a crime scene following Monday's two blasts which killed three people and injured hundreds of others. 

Eight-year-old Martin Richard of Dorchester, Mass., was one who died, according to NBC News.  "Richard’s mother, Denise, and his six-year-old sister were reported to have been seriously injured in the explosion," NBC reported.

The family was there to watch their husband and father, William, finish the race, according to the Huffington Post.

"There are so many moving parts to an investigation such as this," U.S. Attorney Carmen Ortiz said in Tuesday morning's press conference, live streamed by Richmond’s WTVR CBS 6 .  "I want to repeat this is an active and ongoing investigation, but rest assured we are bringing all the resources necessary to help Boston recover," she said.

Boston Police Commissioner Ed Davis confirmed three people have died and 176 injured are injured, including 17 in critical condition.

"Any information that you have, any videos and photos, not just at that scene, but in the vicinity, can be helpful," Davis said. 

"There were hundreds if not hundreds of thousands of photos and videos taken and observations made yesterday," Timothy Alben, Superintendent of Massachusetts State Police, said.  "Bring forward anything," he said.  "You might not think it's significant, but it might well have value to this investigation," he said.

Davis said the city is working with the FBI and ATF and has already received response from New York City and Baltimore law enforcement.  "The [crime scene] area of 15 blocks has been reduced to 12 blocks," he said.  "We want to open up as many streets and get people into their buildings as soon as possible," he said.  He said the scene is going to take several days to process.

Timothy Alben, Superintendent of Massachusetts State Police, said residents and visitors will see increased police presence throughout Boston.  "You will see an increased presence for no particular reason other than to provide comfort," he said.  He said the increased presence of national guardsmen, state police, MBTA police and law enforcement at Logan Airport, "is significantly enhanced not to inconvenience, not for any particular reason other than to seek out tips and information." 

"What happened yesterday was a terrible tragedy, but it was amazing to see how people helped one another, running toward the blast to help those in greater need," Ortiz said.

If you have videos, photos or observations to share, please contact the FBI's national tip line at 1-800-CALL-FBI (1-800-225-5324) and select prompt #3.

Return to the hub page on Fredericksburg Patch -- Ongoing Coverage of the Boston Marathon Bombing -- for continuing coverage.