Boston bombing suspects: Investigators in the Boston Marathon bombing are working to determine the identities of two men, one carrying a backpack and the other dropping off a bag, who were at the scene prior to the explosions.
Three days after the Boston Marathon bombing hundreds of federal investigators are now chasing the name behind a face.
Video security clips from a Lord & Taylor department store across the street from the spot where the second bomb exploded show a man acting suspiciously, according to FBI personnel. He drops a bag and then walks away.
Images show him reacting to the first explosion by quickly exiting the site where the second explosion is about to occur.
The person in question is a young white man wearing a black jacket, a gray hooded sweatshirt, and a white or off-white baseball cap on backwards, according to CBS News.
Investigators are now going through logs of cellphone calls line by line, trying to determine who made calls from that location around the time the bombing took place, says CBS. They have cellphone owner information they are trying to match to the elusive face.
CBS correspondent John Miller, a former FBI assistant director, said that on Wednesday federal authorities had decided to release images from the Lord & Taylor video so as to enlist the public in the effort to determine the man’s name. Then they pulled back.
Agents are still assessing whether to go forward with that tactic, said Mr. Miller.