Boston Marathon bombing suspect Dzhokhar Tsarnaev was apprehended after an extensive manhunt that lasted almost 20 hours Friday. His capture followed an early morning shootout that killed his brother, Tamerlan, also a suspect in the bombings.
Manhunt for Boston Bombing Suspect

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A Montgomery County, Maryland police officer pushes the media back from in front of the house of the uncle of the Boston Marathon bombing suspects, April 19, 2013, in Montgomery Village.

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Police officers keep a man on the ground in Watertown, April 19, 2013, following the shooting of a police officer at the Massachusetts Institute of Technology (MIT).

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Police with guns drawn search for a suspect on April 19, 2013 in Watertown, Massachusetts.

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Police officers keep a man on the ground in Watertown, April 19, 2013 following the shooting of a police officer at the Massachusetts Institute of Technology (MIT).