The suspects' uncle, speaking to reporters in Montgomery, Maryland, said he was "ashamed" of Dzhokhar and Tamerlan Tsarnaev.
"Of course we're ashamed, they are children of my brother, who had little influence on them," he said.
"They've never been in Chechnya. Chechens are peaceful people."
"I say Dzhokhar, if you are alive, turn yourself in and ask for forgiveness."
"He put shame on the entire Chechen ethnicity."