After the mayhem now it's time to deliver the justice. An extensive manhunt operation is going on to find the culprits who carried out the deadly attacks in Boston . In the process on  Thursday the Federal Bureau of Investigation released photos and videos of two men carrying backpacks near the scene of the deadly attacks. By far these two men are the prime suspects. Security agencies are yet the find the real motive behind this gruesome act.

The FBI, seeking a quick resolution to one of the nation's biggest terror attacks since Sept. 11, 2001, urged the public to come forward with tips about the two men, who were described as the principal focus of the investigation. The two were seen together and then separately, with one putting a bag down at the spot where the second of two blasts went off Monday, the FBI said. The bombs killed three people and injured more than 175 innocent civilians.

(AW-Jyotishman)