BOSTON (Reuters) - Wearing an orange prison jumpsuit, with his arm in a cast, accused Boston Marathon bomber Dzhokhar Tsarnaev pleaded "not guilty" to committing the worst mass-casualty attack on U.S. soil since 9/11, a crime that could bring him the death penalty.
Appearing in court for the first time, the 19-year-old ethnic Chechen - a naturalized U.S. citizen - spoke clearly, answering seven times that he was "not guilty" and occasionally glancing back at the gallery, where survivors and victims' relatives were watching.