The aunt of two brothers suspected of planting the Boston Marathon bomb said "everything was perfect" in their family.
Maret Tsarnaeva told reporters her brother Anzor was "a very loving, soft-hearted father."
Detectives in Boston are looking further afield as they piece together their case against Marathon suspect Dzohkhar Tsarnaev.
The uncle of Boston bombing suspect Tamerlan Tsarnaev described his recent visit to Dagestan in Russia and his great shock at the attacks.
Both men were enrolled in a school in Dagestan, a neighbouring region that was drawn into Chechnya's violence during the 1990s.