Investigators Looking At Pressure Cooker Found After Boston Marathon Bombings

Investigators Looking At Pressure Cooker Found After Boston Marathon Bombings
This image from a Federal Bureau of Investigation and Department of Homeland Security joint bulletin issued to law enforcement and obtained by The Associated Press, shows the remains of a pressure cooker that the FBI says was part of one of the bombs that exploded during the Boston Marathon. (AP Photo/FBI)

There is still no suspect in the Boston Marathon bombings, but authorities have more pieces of the puzzle. ABC News Crime and Terrorism Analyst Brad Garrett tells us right now the investigation is looking at the pressure cooker that was found.