BOSTON (AP) Lawyers for Boston Marathon bombing suspect Dzhokhar Tsarnaev say federal prosecutors are withholding evidence they consider crucial to their defense of him in the death penalty case, including his family's testimony.
In a memo filed in court Thursday, Tsarnaev's lawyers say prosecutors have been "spotty and inconsistent" on turning over materials.
Tsarnaev is charged with using a weapon of mass destruction and several other charges in the April 15 bombing.
Authorities say Tsarnaev and his brother Tamerlan, 26, ethnic Chechens from Russia, built pressure cooker bombs and placed them near the finish line, killing three people and injured more than 260. Tamerlan died following a shootout with police several days after the bombings.
Seventeen of the charges carry a possible death penalty.