AP PHOTOS: Scenes from the past 24 hours in Boston

Associated Press
The usually busy Kenmore Square in Boston is virtually deserted at lunchtime Friday, April 19, 2013, during a call for "shelter-in-place" for Boston and some area communities. Two suspects in the Boston Marathon bombing killed an MIT police officer, injured a transit officer in a firefight and threw explosive devices at police during their getaway attempt in a long night of violence that left one of them dead and another still at large Friday, authorities said as the manhunt intensified for a young man described as a dangerous terrorist. (AP Photo/Elise Amendola)
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Most of Boston is shut down as law enforcement continues its massive manhunt for the remaining suspect in the marathon bombings. Police say one suspect is now dead and the other is on the run after a violent night of gunfire and explosions near Boston, which left one MIT police officer dead.

Here is a gallery of photos looking back at the past 24 hours in the search.

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