KGO ABC World News With Diane Sawyer April 18, 2013 00:33:00
A restricted location near the boston harbor. and they are masters at what is known as facial recognition, the new science of converting a face into a name, demonstrated here by an indiana company that was used by the fbi following the 9/11 attacks. >> in this investigation, there will be hundreds of thousands of images. if they have a suspect identified, they know the area that suspect was in, they'll be able to then track the person back to an image and say, here we have him. >> reporter: the fbi tech agents are also examining tiny bits of debris recovered at the crime scene. there are wire ...