UPDATED WEDNESDAY, APRIL 17 – 1:40 pm Eastern Time
CNN’s John King is EXCLUSIVELY reporting that Investigators believe they have identified a suspect in the Boston Marathon bombings,
The breakthrough came from analysis of video from a department store near the site of the second explosion. Video from a Boston television station also contributed to the progress, said King’s source, who declined to be more specific but called it a significant development.
Earlier, a federal law enforcement source with firsthand knowledge of the investigation told CNN that a lid to a pressure cooker thought to have been used in the bombings had been found on a roof of a building near the scene.
Fuentes said he has investigated both types of terrorism,from Iraq to the United States, and finds the Boston attack has elements of both. “It has the hallmarks of both domestic and international (attacks), and you can see either side of that.”
The bombs, which exploded 12 seconds apart, killed three people and wounded 183.
One was housed in a pressure cooker hidden inside a backpack, the FBI said in a joint intelligence bulletin. The device also had fragments that may have included nails, BBs and ball bearings, the agency said.
The second bomb was also housed in a metal container, but it was not clear whether it too was in a pressure cooker, the FBI said.
The U.S. government has warned federal agencies in the past that terrorists could turn pressure cookers into bombs by packing them with explosives and shrapnel and detonating them with blasting caps.
Photos obtained by CNN show the remains of a pressure cooker found at the scene, along with a shredded black backpack and what appear to be metal pellets or ball bearings.
Scraps of at least one pressure cooker, nails and nylon bags found at the scene were sent to the FBI’s national laboratory in Virginia, where technicians will try to reconstruct the devices, the agent leading the investigation said Tuesday.
The pieces suggest each of the devices was 6 liters (about 1.6 gallons) in volume, a Boston law enforcement source said. The recovered parts include part of a circuit board, which might have been used to detonate a device.
A law enforcement official said Monday’s bombs were probably detonated by timers. But the FBI said details of the detonating system were unknown.
The attack has left Boston police with “the most complex crime scene that we’ve dealt with in the history of our department,” Commissioner Ed Davis said Tuesday.
Authorities are sifting through more than 2,000 tips and a mass of digital photos and video clips, but are asking for the public’s help in providing additional leads and images.
“Someone knows who did this,” said Rick DesLauriers, the special agent in charge of the FBI’s Boston office. “Cooperation from the community will play a crucial role in this investigation.”
DesLauriers asked the public to report anyone who may have talked about targeting the marathon or shown interest in explosives. He urged anyone who may have heard explosions in remote areas, possibly indicating a bomb test, or seen someone carrying “an unusually heavy, dark-colored bag” around the time of the attack to come forward.
Who may have wanted to cause mass destruction, and whether the individual or individuals acted alone or as part of a group, remained a mystery.
“Boston is not going to be intimidated by this,” said U.S. Secretary of State John Kerry, a former U.S. Senator from Massachusetts, in testimony to the House Foreign Affairs Committee on Wednesday. “But we are going to find out who did this. The police work being done is extraordinary. The FBI is remarkable. There is a great deal of forensic evidence. We are hopeful we can bring people to justice.”
Medical personnel treating the wounded found evidence suggesting the bombmaker or bombmakers sought to maximize the suffering.
Dr. George Velmahos, head of trauma care at Massachusetts General Hospital, said his team found metal pellets and nails inside patients’ bodies.
“They are numerous. There are people who have 10, 20, 30, 40 of them in their body, or more,” Velmahos said.
While most of the patients treated at Brigham and Women’s Hospital were wounded by “ordinary debris,” three were struck by “perfectly round objects” that were uniform, consistent and metallic, the hospital’s chairman of emergency medicine said.
Dr. Ron Walls also said one patient had more than 12 carpenter-type nails.
“There is no question some of these objects were implanted in the device for the purpose of being exploded forward,” he said.
Anyone with additional information is encouraged to call 1-800-494-TIPS.
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