NEW ORLEANS -- A New Orleanian who has worked with explosives for the military says, based on what he's seen, he suspects pipe bombs could have been involved in the Boston Marathon explosions.
At least three people are dead and more than 130 injured after two explosions went off near the finish line of the celebrated race.
Army veteran Brad Robinson explained to us what the next steps in the investigation might be.
“They are going to try to isolate the area, and they're going to try to gather every piece of the bomb that they can, and try to ascertain how it was constructed, every piece of wire, I mean no matter what the size is, and they'll try to reconstruct it.”
Robinson said the blast radius for a pipe bomb is about 45 feet.