Timeline: Boston Marathon bombings

Published On: Apr 16 2013 11:30:08 AM CDT   Updated On: Jul 10 2013 03:08:11 PM CDT

With Boston Marathon bombing suspect Dzhokhar Tsarnaev pleading not guilty Wednesday in his first court appearance since being arrested, revisit a timeline of the events in the case so far.

Watertown scene
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10:30 p.m. -- An MIT campus police officer was found shot in his vehicle in the area of Vassar and Main Streets after a convenience store robbery. He was transported to Massachusetts General Hospital and pronounced dead.

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