Blood on gloves in bomber's car matched that of dead officer
BOSTON (AP) -- A DNA expert has testified that the blood of a Massachusetts Institute of Technology police officer was on white gloves found in Boston Marathon bomber Dzhokhar Tsarnaev's car.
The testimony came Wednesday as prosecutors tried to show Tsarnaev played an active role in the killing of Officer Sean Collier days after the 2013 bombings.
The 21-year-old Tsarnaev could face the death penalty if convicted. His lawyer admitted during opening statements that Tsarnaev participated in the bombings but said his older brother, Tamerlan, was the mastermind.
His lawyer also said it was Tamerlan, not Dzhokhar, who shot Collier.
During cross-examination by Tsarnaev's lawyers, the DNA analyst acknowledged that none of the blood found on the sweatshirt Dzhokhar wore the night of the killing matched Collier's.