A federal jury on Wednesday found Dzhokhar Tsarnaev guilty of all 30 counts in the 2013 Boston Marathon bombing case.
Seventeen of the counts are punishable by death. They include use of a weapon of mass destruction resulting in death, bombing of a place of public use, and possession and use of a firearm.
Tsarnaev, who prosecutors said was a self-radicalized Muslim bent on striking a blow against America, showed no emotion as the verdict was read aloud in U.S. District Court in Boston.
The seven-woman, five-man jury deliberated for over 11 hours before rendering its verdict. The same jury will decide in a second phase of the trial whether he will be sentenced to life in prison or the death penalty.
Tsarnaev and his now-dead older brother, Tamerlan, planted two pressure-cooker bombs near the finish line of the Boston Marathon on April 15, 2013. The bombings killed three people and injured more than 260 in the worst terror attacks on American soil since 9/11.
Tsarnaev's lawyers admitted he participated in the bombings, but said his brother was the driving force behind the deadly attack.
Prosecutors called 92 witnesses over 15 days. Survivors gave heartbreaking testimony about losing legs in the blasts or watching people die.
Tsarnaev was also convicted of murdering an MIT police officer several days after the bombing and battling police in a wild firefight in Watertown. Tamerlan Tsarnaev, 26, died when he was shot by police and run over by his younger brother during a chaotic getaway attempt days after the bombing.
On the evening of April 19, 2013, Dzhokhar Tsarnaev was found hiding in a boat.