A look at Boston Marathon bombing, investigation

Published on NewsOK Modified: May 1, 2013 at 6:21 pm •  Published: May 1, 2013
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THE PURSUIT

The explosions touched off a massive manhunt after authorities released the pictures of the suspected bombers. Authorities said the brothers shot and killed a Massachusetts Institute of Technology police officer, carjacked an SUV and engaged in a gunbattle with police in the streets of the suburban Boston community of Watertown. Tamerlan Tsarnaev was wounded during the firefight, and investigators said Dzhokhar Tsarnaev ran over him in the stolen SUV as he made his escape. Tamerlan Tsarnaev was later pronounced dead at a hospital.

Authorities shut down Boston and other nearby communities during their daylong search for the younger brother. Dzhokhar Tsarnaev was found hours later, badly wounded and hiding under a tarp covering a pleasure boat in the backyard of a Watertown home. He's currently being held in a prison hospital and is charged with using a weapon of mass destruction to kill, a crime that carries a potential death sentence.