Anzor Tsarnaev, father of the 2 suspects, spoke with the Associated Press over the phone from his home in southern Russian republic of Dagestan.
"My son is a true angel," the elder Tsarnaev said speaking about his 19 yearold son who is still at large. He said his son was "an intelligent boy" who was studying medicine.
"They were set up, they were set up!" he exclaimed. "I saw it on television; they killed my older son Tamerlan."
The father ended the call abruptly, saying angrily "Leave me alone, my son's been killed"