Timeline: Boston Marathon bombings

Published On: Apr 16 2013 11:30:08 AM CDT   Updated On: Mar 04 2015 02:04:36 PM CST

With opening arguments beginning in the trial of Boston Marathon bombing suspect Dzhokhar Tsarnaev's -- revisit a timeline of the events in the case so far.

FBI on scene at Boston Marathon
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8:49 p.m. -- The FBI takes the lead in the bombings investigation.

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