HispanicBusiness

The brothers suspected in the April 15 Boston Marathon bomb blasts originally planned a suicide mission for July 4, a federal law enforcement official told CNN.

The official said Dzhokhar Tsarnaev, 19, told investigators the bombs were ready earlier than they expected, so they moved up the date and the marathon was selected as the target only a day or two in advance, CNN reported Friday.

The July 4 target was not known.

The bombs used at the marathon blasts were constructed in the apartment suspect Tamerlan Tsarnaev, 26, shared with his wife and child, a U.S. official said.

Katherine Russell, Tsarnaev's widow, has been living at her parents' home in North Kinsgtown, Mass., since her husband died in a shootout with police April 19. The federal official said it was unclear what, if anything, Russell may have known or suspected.

Three people died and more than 260 were wounded in two bomb explosions at separate locations near the finish line of the marathon.

The revelation about the July 4 plan came Thursday, the same say the body of Tamerlan Tsarnaev was claimed by his family and picked up by a funeral home, Terrel Harris, a spokesman for the Massachusetts office of the chief medical examiner, said.

Tsarnaev's cause of death won't be released until the death certificate is filed with the Boston city clerk, Harris said.

Tsarnaev's parents in Dagestan won't bring his body back to Russia and they won't bury him until an "independent" autopsy is performed, a family spokeswoman said Friday.

His body will be interred "somewhere in Boston," the spokeswoman said.

Federal officials said they received a laptop belonging to Dzhokhar Tasernaev from one of the suspect's friends who has been accused of obstructing justice, CNN reported.

Four people have been charged, including Dzhokhar Tsarnaev, who is accused of carrying out the attack along with his brother. Among the charges Dzhokhar Tsarnaev faces is using a weapon of mass destruction. He sustained injuries when he was captured by police in Watertown, Mass., April 19.

Azamat Tazhayakov and Dias Kadyrbayev -- the friend who turned over the computer to authorities -- were charged Wednesday with conspiring to discard potentially incriminating items from Dzhokhar's dorm room. Robel Phillipos was charged with making false statements to investigators.

The Kazakhstan Foreign Ministry said Thursday it offered consular services to Kadyrbayev and Tazhayakov, who are citizens of that country in the United States on student visas.

"We would like to emphasize that our citizens did not receive charges of involvement in the organization of the Boston Marathon bombings," the ministry said in a statement. "They were charged with destroying evidence."