Updated

Lawyers for Boston Marathon bombing suspect Dzhokhar Tsarnaev (joh-HAHR' tsahr-NEYE'-ehv) are making a second push to move his trial to Washington, D.C.

Tsarnaev's lawyers say a defense expert who analyzed polling data and media coverage found that among Massachusetts residents there's "an overwhelming presumption" he's guilty. They say their analysis shows people in Washington are less likely to assume his guilt.

The lawyers filed new materials Thursday to support a change-of-venue request they made in June.

The 21-year-old Tsarnaev is awaiting a November trial on federal charges in the deadly attack. He has pleaded not guilty and, if convicted, could face the death penalty.

Prosecutors say he and his brother, Tamerlan Tsarnaev (TAM'-ehr-luhn tsahr-NEYE'-ehv), placed two bombs near the 2013 marathon finish line, killing three people and injuring more than 260.