FBI agents are pouring over images sent in from bystanders whose photos documented what they had no idea would become a crime scene before and after the deadly Boston Marathon bombing. Law enforcement and the FBI deny that any arrests have been made or suspects named in the investigation.

Images shown in a report from today's America's Newsroom show a man in burned and shredded clothing fleeing the scene, doing the opposite of what most did after the blast, stopping to help those around them and react to the chaotic scene.

President Barack Obama and the first lady will be in Boston later today to attend an inter-faith service, as well as speak to victims and city officials.