Bombing Suspect To Face Additional Charges

07:01

April 23, 2013

The Associated Press

A private funeral was held Tuesday morning for MIT police officer Sean Collier at St. Patrick Parish in Stoneham. (Fred Bever/WBUR)

This undated photo shows Massachusetts Institute of Technology (MIT) Police Officer Sean Collier, 27, of Somerville, Mass., who was shot to death Thursday, April 18, 2013 on the school campus in Cambridge, Mass. (Middlesex District Attorney's Office) — MIT police officer Sean Collier, 27, of Somerville, Mass.,was shot to death Thursday, April 18, 2013, on the school campus in Cambridge, Mass. (Middlesex District Attorney's Office)

He's already been charged with using a weapon of mass destruction in the Boston Marathon bombings — but more charges are ahead for Dzokhar Tsarnaev.

State prosecutors expect to charge him separately in the killing of MIT police officer Sean Collier, 27, who was shot in his cruiser Thursday night on the school's campus in Cambridge.

Federal prosecutors could also add new charges when he's indicted in the bombing.

Still unable to speak because of wounds, Tsarnaev answered questions in writing yesterday.

U.S. officials say Tsarnaev and his brother, who was killed in a shootout with police, appear to have been motivated by their religious views, not any connection to any Muslim terrorist groups.

Guest:

Milton Valencia, reporter for The Boston Globe. He tweets @MiltonValencia.

This segment aired on April 23, 2013.

Boston Marathon bombing