More details sought on mute Boston bomb suspect

By By DENISE LAVOIE and EILEEN SULLIVAN

BOSTON (AP) — Officials have interrogated the 19-year-old charged with the Boston Marathon bombings but say that because he communicated in writing, it precluded the type of back-and-forth exchanges often crucial to establishing key facts and meaning.

Dzhokhar Tsarnaev (joh-KHAR' tsahr-NEYE'-ehv) was charged Monday in his hospital room, where he is in serious condition with a gunshot wound to the throat suffered during his attempted getaway. His brother, 26-year-old Tamerlan, died Friday after a gunbattle with police.

The brothers appear to have been motivated by a radical brand of Islam but do not seem connected to any Muslim terrorist groups, say U.S. officials, who spoke on condition of anonymity because they were not authorized to discuss the investigation publicly.

A probable cause hearing has been set for May 30.

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