Boston Marathon bombing suspect Dzhokhar Tsarnaev's (joh-HAHR' tsahr-NEYE'-ehvz) defense team has again asked a judge to postpone his trial, given that he faces the death penalty.

In a filing Monday, defense lawyers said given the volume of documentation and evidence in the case, more time is needed to prepare.

Defense lawyers also say the government hasn't handed over all documents requested and that Tsarnaev deserves the most thorough defense possible because he faces death.

Defense lawyers say Tsarnaev "is being afforded substantially less time to prepare than the vast majority of defendants in federal capital cases."

Jury selection is scheduled to begin Jan. 5. Tsarnaev has pleaded not guilty.

The April 2013 bombings killed three and injured more than 260.