Boston Bomb Triggered by phone

FBI report called Dzhokhar Tsarnaev using a mobile phone to trigger a bomb blast Boston. The report became one Tsarnaev evidence in court. 

"Before the explosion occurred, Tsarnaev visible
surveillance cameras were using cell phones," said FBI agent Daniel Geneck in the report, as quoted by PTI, Tuesday (23/04/2013).

"A few seconds after Tsarnaev finished using the phone, the first bomb blast occurred," said Geneck.

When Dzhokhar Tsarnaev Bomb Boston

Tsarnaev itself is now facing the death penalty after being convicted of using weapons of mass destruction to attack citizens. Boston bomb attack left three dead and hundreds injured.

U.S. Federal Court proceedings begin special session on Sunday, April 21 Tsarnaev ago. Tsarnaev undergoing trials session at the hospital where she was treated.

In the process of interrogation by officers, Tsarnaev admitted his brother, Tamerlan, as the brain behind the bomb attack . He also said that the attack was carried out based on the religious sentiments of his brother owned it.