Dzhokhar Tsarnaev trial
Dzhokhar Tsarnaev trial,A computer expert testifying in the Boston Marathon bombing trial says Dzhokhar Tsarnaev's older brother did Internet searches on bombing components in the weeks before the 2013 terror attack.
Mark Spencer, a forensics expert, says search terms on Tamerlan Tsarnaev's laptop included "detonator, "transmitter and receiver" and "fireworks firing system." He says Dzhokhar Tsarnaev's laptop showed his computer activity focused heavily on Facebook and a Russian version of Facebook.
The testimony is part of an effort by Tsarnaev's lawyers to show that Tamerlan was the mastermind of the bombings. The defense admitted during opening statements that Dzhokhar participated in the attack but said he fell under the influence of the radicalized Tamerlan.
Tamerlan died following a shootout with police days after the bombings.
Twin bombs filled with BBs and shrapnel exploded near the marathon's finish line on April 15, 2013. Three people were killed and more than 260 injured.On Monday, prosecutors rested their case after jurors in his federal death penalty trial saw gruesome autopsy photos and heard a medical examiner describe the devastating injuries suffered by the three people who died in the terror attack.
If the jury convicts Tsarnaev - an event that may be a foregone conclusion because of his admitted guilt - the trial will move on to the second phase, when the same jury will hear more evidence to decide whether Tsarnaev should be put to death or should spend the rest of his life in prison.
During this second phase of the trial, Tsarnaev's lawyers will present evidence of factors they believe mitigate his crimes, such as his age at the time - 19- and the influence of his older brother. The Tsarnaevs - ethnic Chechens - lived in the former Soviet republic of Kyrgyzstan and the volatile Dagestan region of Russia before moving to the U.S. with their parents and two sisters about a decade before the bombings. They lived in Cambridge.
Mark Spencer, a forensics expert, says search terms on Tamerlan Tsarnaev's laptop included "detonator, "transmitter and receiver" and "fireworks firing system." He says Dzhokhar Tsarnaev's laptop showed his computer activity focused heavily on Facebook and a Russian version of Facebook.
The testimony is part of an effort by Tsarnaev's lawyers to show that Tamerlan was the mastermind of the bombings. The defense admitted during opening statements that Dzhokhar participated in the attack but said he fell under the influence of the radicalized Tamerlan.
Tamerlan died following a shootout with police days after the bombings.
Twin bombs filled with BBs and shrapnel exploded near the marathon's finish line on April 15, 2013. Three people were killed and more than 260 injured.On Monday, prosecutors rested their case after jurors in his federal death penalty trial saw gruesome autopsy photos and heard a medical examiner describe the devastating injuries suffered by the three people who died in the terror attack.
If the jury convicts Tsarnaev - an event that may be a foregone conclusion because of his admitted guilt - the trial will move on to the second phase, when the same jury will hear more evidence to decide whether Tsarnaev should be put to death or should spend the rest of his life in prison.
During this second phase of the trial, Tsarnaev's lawyers will present evidence of factors they believe mitigate his crimes, such as his age at the time - 19- and the influence of his older brother. The Tsarnaevs - ethnic Chechens - lived in the former Soviet republic of Kyrgyzstan and the volatile Dagestan region of Russia before moving to the U.S. with their parents and two sisters about a decade before the bombings. They lived in Cambridge.
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Dzhokhar Tsarnaev trial
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