Lawyers for Boston Marathon bomber Dzkokhar Tsarnaev rested their case April 15 , 2013 after calling just four witnesses . The defense team has admitted that Tsarnaev participated in the bombings , but are trying to save him from the death penalty . They called a cell site analyst to prove Tsarnaev was not with his brother when he purchased the materials to make the bombs . Also called to the stand was a digital forensics expert who testified about Tamerlan 's computer history , which included pages on how to make bombs . An FBI photographer was called to try and prove that the brothers did not target specific individuals with their placement of the bombs . The defense claims Tsarnaev was troubled and had fallen under the influence of his brother , Tamerlan . If the jury convicts Tsarnaev they will then have to decide if he should be executed or receive a sentence of life in prison .
Lawyers for Boston Marathon bomber Dzkokhar Tsarnaev rested their case today after calling just four witnesses . The defense team has admitted that Tsarnaev participated in the bombings , but are trying to save him from the death penalty . They called a cell site analyst to prove Tsarnaev was not with his brother when he purchased the materials to make the bombs . Also called to the stand was a digital forensics expert who testified about Tamerlan 's computer history , which included pages on how to make bombs . An FBI photographer was called to try and prove that the brothers did not target specific individuals with their placement of the bombs . The defense claims Tsarnaev was troubled and had fallen under the influence of his brother , Tamerlan . If the jury convicts Tsarnaev they will then have to decide if he should be executed or receive a sentence of life in prison .