A lid to a pressure cooker thought to have been used as the explosive device in the Boston bombings has been found on a roof of a building near the scene.
Take a look at the device fragments and other crime scene images from the deadly bombings.
Investigators prepared to survey the scene of the bomb blasts on Boylston Street in Boston.
Investigators surveyed the scene took pictures of the remains of an explosive device at the site of the bomb blast.
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.
Investigators say that the trigger mechanisms of the Boston marathon bombs were battery powered.
Destroyed electronic board parts lie on the ground around the scene of the detonation of one of the bombs.
The device also had fragments that may have included nails, BBs and ball bearings.
Pieces of the sophisticated detonator were found on the scene.
More remains of what are thought to be pressure cooker bombs.
To view a timeline of the events in the Boston Marathon explostions, click here.
Everyone loves bacon. And cheese. But stuffed into a pizza crust?
Two construction workers came crashing down when a scaffolding fell apart while they were working on a two story home on Shoreline Drive in Santa Barbara.
Access to one of the Channel Islands is cut off while repairs are done to a dock on Santa Barbara Island.
The Santa Maria Police Department blocked two roads near the Courthouse as a safety precaution Monday morning.
Isla Vista residents, which includes UC Santa Barbara and Santa Barbara City College students, are already seeing more signs of law enforcement.
A new aviation program is taking off at Santa Barbara Business College. It is a two-year, Associate of Science Aviation program. The inaugural class takes off in October.
It's a challenge that has gone viral. It's known as "The Cold Water Challenge," but could this latest trend be harmful to your health?
The ISIS terror group has published a video titled "A second message to America" that purportedly shows the beheading of American journalist Steven Sotloff.
Jennifer Lawrence and Kate Upton are only the latest celebrities facing nude photo scandals. Check out the others.
Justin Bieber has been arrested again, this time for an alleged fight after an accident. Take a look back at Bieber's long history of bad behavior.
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