Police have uncovered a possible break in the Boston Marathon bombing case that killed three and injured 176 near the finish line of the race.
Investigators spotted a suspect from security video taken before the deadly blasts.
The discovery of the image was found on surveillance footage from outside of a Lord & Taylor department store near the finish line of the race.
The footage shows a man reportedly talking on a cell phone and carrying a black bag strapped across his chest and then possibly leaving that bag at the scene. The suspect in the video has not been identified.
"Before they make any arrest they're going to have the case pretty much the evidence will be there," former FBI Special Agent in Charge Peter J. Ahearn said. "They're really going to be able to put this on somebody. They're not going to rush to judgment on this."
Investigators have recovered the partial remains of one of the bombs: a medium-sized pressure cooker packed with wires, a circuit board, nails and ball bearings.
CBN News Chief Military Correspondent Chuck Holton says similar pressure cooker IEDs are very common in Afghanistan and Iraq.
"These are used as training devices once they're taken off the streets. Of course, you can see in the photo that you've got there that the pressure cookers they've got over there are a little different than what you would see in your grandma's kitchen, but the effect is the same," Holton said.
Holton said that because such explosives are common in the Middle East, one could be led to believe the bombers had ties to al Qaeda or the Taliban.
"But then again," he added, "the plans for making one of those bombs are freely available - on the Internet. So anybody with the inclination to do so could get a hold of that and make one very simply."
Meanwhile, dozens of the Boston bombing victims have been released from the hospital. But at least 14 of them remain in critical condition, with some of the wounded suffering traumatic limb amputations.
President Obama addressed victims of the bombings Thursday at an interfaith memorial service in Boston, wishing those injured in the blasts a quick recovery.
"As you begin this long journey of recovery, your city is with you," the president said. "Your commonwealth is with you. Your country is with you. We will all be with you as you learn to stand and walk and, yes, run again. Of that I have no doubt. You will run again."
Obama promised justice to those responsible and a strengthened resolve for the country as a whole.
Neurosurgeon Ben Carson of Johns Hopkins Hospital said the death toll could have been a lot worse.
"The fortunate thing is you know it happened toward the end of the marathon when you had a lot of medical people available to take care of the exhausted people so they simply shifted what they were doing and so it really I think probably is the reason why the death toll was as low as it was," Dr. Carson said.
Three of the hospitals treating the seriously wounded expect all of their patients to survive.
So far, no one has claimed responsibility for Tuesday's bombings.