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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Images released by Federal Bureau of Investigation (FBI) shows "Suspect 2" (L-white cap) and "Suspect 1" (R-black cap) in the crowd before the blast at the Boston Marathon on April 15, 2013.

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Police on School and Walnut Street as the search continues for a suspect on April 19, 2013 in Watertown.

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Residents view police in tactical gear conduct a search for a suspect in the Boston Marathon bombings, April 19, 2013, in Watertown.

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Ruslan Tsarni, the uncle of the Boston Marathon bombing suspects, walks into his home in Montgomery Village in Maryland, April, 19, 2013.