BOSTON (ABC/WSYR-TV) – The Federal Courthouse where any suspect in the Boston Marathon bombings would stand trial was evacuated late Wednesday afternoon because of a bomb threat that was, understandably, taken very seriously.
No bomb was found, but the law enforcement response forced a postponement of a news conference where officials had planned to talk about a major development and a possible suspect in the case.
Authorities say the FBI is focused on photographs, Google Earth and images taken by surveillance cameras at Lord & Taylor that possibly show a man in the race crowd using a cell phone with a black bag strapped across his chest that they say may have contained the bomb.
The key frames are just a few of the millions of frames of video examined in the last 36 hours by a special team of FBI forensic experts.
Experts have set up facilities at a restricted location near the Boston Harbor and they’re masters at what is known as facial recognition, the new science of converting a face into a name.
The same technique 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 the suspect was in and they know what time he was in the area and they’ll be able to then track the person back to an image and say, ‘Ah, here we have him,’” explained Forensic Video Expert Grant Fredericks.
The FBI tech agents are also examining tiny bits of debris recovered at the crime scene.
There are wire fragments with manufacturing names, tiny nails used as shrapnel, as well as the mangled remains of the pressure cooker that agents say was used to build the bomb, which may still have the suspect’s fingerprints on it.
“One of the keys in any trial is linking the evidence you have to the suspect. It’s extremely important to match the bomb to the bad guy,” said former FBI agent Brad Garrett.
Ultimately, whoever is arrested will almost certainly face at least three counts of pre-meditated murder for the deaths of 8-year-old Martin Richard, 29-year-old Krystle Campbell and Boston University grad student Lingzi Lu.