Photos: Boston bomb suspects

The FBI has released photos of two suspects in the Boston Marathon bombings and is asking for the public's help in identifying them.

This image released by the FBI on Thursday, April 18, 2013, shows in a image from video what the FBI is calling suspect number 1 with a black hat walking with a backpack in Boston on Monday, April 15,

Image 1 of 7: This image released by the FBI on Thursday, April 18, 2013, shows in a image from video what the FBI is calling suspect number 1 with a black hat walking with a backpack in Boston on Monday, April 15,