Dzhokhar A. Tsanaev

Metro SWAT members hang off the back of a truck as they prepare to search the School and Walnut Street neighborhood  for one remaining suspect on April 19, 2013 in Watertown, Mass. (credit: Darren McCollester/Getty Images)

Police: ‘Grave’ Situation After Marathon Bombing Suspect Dead, Other At Large

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.

04/19/2013

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