Boston Marathon bombing suspect Dzhokhar Tsarnaev is awake
and responding sporadically in writing to questions, authorities said.
Investigators are asking about other cell members and other unexploded bombs,
law enforcement sources told ABC News.
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1 Comments in Response to Bombing Suspect Is Responding to Questions in Writing
Boston bombers: FBI hunting 12-strong terrorist “sleeper cell” linked to brothers Tamerlan and Dzhokhar Tsarnaev