Jury was shown pictures of pressure cooker bomb Dzhokhar Tsarnaev allegedly threw at police four days after Boston Marathon bombing . The jury heard that the bombs were made from fireworks and a bottle filled with shrapnel - but they also saw photos of what appeared to be an explosive device in one of them.
Jury was shown pictures of pressure cooker bomb Dzhokhar Tsarnaev allegedly threw at police four days after Boston Marathon bombing . Prosecutors also presented evidence of jihadi materials on the accused terrorist 's laptop , including a DIY bombing-making guide . Tsarnaev , 21 , faces the possibility of the death penalty if convicted for the April 2013 attacks . His brother Tamerlan is believed to have carried out the attacks with him , but died in a gunfight with police in the aftermath of the bombings .