Two Friends of Alleged Boston Bomber Plead Not Guilty of Cover-Up

Accused of helping cover Dzhokhar's tracks

Two college friends of accused Boston Marathon bomber Dzhokhar Tsarnaev pleaded not guilty on Friday to charges that they helped cover his tracks when the FBI was trying to find the people responsible for the April 15 attack.

The appearance in federal court in Boston of a third man charged in the same case was postponed until later on Friday. All three are charged with removing a laptop and a backpack containing empty fireworks shells from Tsarnaev's room three days after receiving a text message from him telling them to "go to my room and take what's there," according to court papers.

Dias Kadyrbayev, of Kazakhstan, pleaded not guilty to the charge of obstruction of justice and could face 25 years in prison or deportation. Robel Phillipos, of Cambridge, Massachusetts, pleaded not guilty to charges of lying to investigators and could face up to 16 years in prison.