Sources: Boston bombs built in older Tsarnaev’s home, first target was July 4


Story highlights

NEW: The family will not bring Tamerlan's body back to Russia, spokeswoman said

Source: Dzhokhar Tsarnaev says plans changed days before bombing

Body of Tamerlan Tsarnaev has been claimed by family

Brothers considered a suicide attack on July 4, source tells CNN

CNN —  

The bombs used in the Boston Marathon attack were built in the apartment that suspect Tamerlan Tsarnaev shared with his wife and child, a U.S. law enforcement official with first-hand knowledge of the investigation told CNN on Thursday. The official was not authorized to release the information.

Katherine Russell, Tsarnaev’s widow, has remained largely out of view inside her parents’ North Kingstown home since her husband’s death.

It remains unclear what, if anything, Tamerlan’s widow might have known or suspected, the source added.

According to her attorney, Amato DeLuca, the 24-year-old widow knew nothing of plans to bomb the race, and reports of her husband’s involvement came as an “absolute shock” to Russell and her family.

Tsarnaev and his younger brother, Dzhokhar, initially planned to carry out a suicide-bomb attack on July 4, a U.S. law enforcement official regularly briefed on the Boston bombing investigation told CNN. The source said Dzhokhar Tsarnaev told investigators their bombs were ready earlier than they expected and they decided to move up the date.

Dzhokhar Tsarnaev told investigators that the Boston Marathon was chosen as a target only a day or two before the event, the source said.