On Monday, Russell’s attorney told CNN his client had no knowledge of her husband’s alleged involvement in the bombings and only found out about it by watching the news.
According the lawyer, Tamerlan, 26, stayed home and cared for the couple's 2-year-old daughter while his wife worked long hours as a home care aide.
"They're very distraught,” said an attorney for the family. “They're upset. Their lives have been unalterably changed. They're upset because of what happened, the people that were injured, that were killed. It's an awful, terrible thing. And of course Katy, it's even worse because what she lost -- her husband and the father of her daughter.”
Russell and Tamerlan were married in 2009 or 2010, said the lawyer, who added she converted to Islam because, "She believes in the tenets of Islam and of the Koran. She believes in God."
Dzhokhar Tsarnaev, 19, remains in serious condition at a Boston hospital after being wounded in the throat. He is awake and answering brief questions from authorities by nodding his head and writing things down, CNN reports.
Dzhokhar was taken into custody on Friday after being discovered in a boat in the backyard of a Watertown, Massachusetts, home.
A White House spokesman Jay Carney told CNN on Monday that Dzhokhar will not be treated as an enemy combatant.
UPDATE: CNN reports Dzhokar Tsarnaev has been charged in federal court with use of a weapon of mass destruction and malicious destruction of property resulting in death, according to the Justice Department announcement. Tsarnaev was arraigned on Monday in his hospital room.