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Boston Marathon Bombing a 'Mangled Mess': Witness

Dr. Allan Panter, an emergency-room doctor, discusses what he saw and how he tried to save lives.
02:19 | 04/16/2013

Transcript for Boston Marathon Bombing a 'Mangled Mess': Witness

Now with more on what was -- -- by the victims and the first responders and those first surreal moments after the explosions. Ripped through the finish line I'm now joined by doctor Alan -- and his... See More
This transcript has been automatically generated and may not be 100% accurate.
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