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The second day of the federal trial of Dzokhar Tsarnaev resumed on Thursday in Boston.  He is accused of setting bombs during the 2013 Boston Marathon that killed three people and injured 26.

The 21 year old could be sentenced to death if convicted of charges that also include the fatal shooting of a police officer three days after the attack as the defendant and his 26-year-old brother, Tamerlan, attempted to flee the city.

The elder of the two died later that night when his younger brother inadvertently ran him over with a car while trying to flee a gun battle with police. In opening statements on Wednesday, one of Tsarnaev’s lawyers said her client was responsible for the attacks, but did not withdraw his plea of not guilty.