Bomb belongs to. and they are trying to figure out whether katherine russell may have played a role in any way in the attack. they went interher home yesterday afternoon and did not walk out empty handed. fbi agents searched this home, belonging to the family of katherine russell, the widow of boston bombing suspect, tamerlan tsavraev, whom she married three years ago. experts carried out two equipment cases and two plastic bags marked dna samples. the fbi took the samples to see if they matched up with female dna, found on the pressure cooker devices. russell, who denied any involvement, has ...