article_snippet: Tsarnaev was killed in a police shootout three days after the attack.
article_snippet: Dzhokhar Tsarnaev, Tsarnaev brother and Russell's brother-in-law, is currently awaiting federal trial for the attack.
article_snippet: The two-month process to select a jury for federal trial for the unthinkable attack was completed Tuesday, authorities said, a day before opening statements in the long-awaited case are to begin.
article_snippet: On trial: Opening statements in federal trial for the unthinkable attack are to begin Wednesday .
article_snippet: Unthinkable: Tsarnaev, 21, faces the death penalty if convicted of the April 15, 2013 bombings near the finish line at the Boston Marathon which left three people dead and 264 injured in the northeastern US city .
article_snippet: Tamerlan was later killed in a shootout with police .
highlights_snippet: The trial of Katherine Russell brother-in-law, Dzhokhar Tsarnaev, will start Wednesday .