Dzhokhar Tsarnaev boasted he could build a bomb and that he wanted to die a martyr claim prosecution

Azamat Tazhayakov and Dzhokhar Tsarnaev pictured here in a photo prior to April 2013

Boston bomber Dzhokhar Tsarnaev boasted to his friend, Azamat Tayazhakov, that he could make a bomb from gunpowder just one month before the terror attacks on the city’s marathon, federal prosecutors said on Monday.

Assistant US Attorney Stephanie Siegmann also said that Tsarnaev, then aged 19, told Tayazhakov and another friend, Dias Kadyrbayev, that it would be good to die as a martyr and “go straight to heaven.”

These damning claims were made on the first day of the trial of three University of Massachusetts students who are accused of interfering with the investigation into the bombing for one reason — to help Tsarnaev.

Azamat Tazhayakov is accused, along with his roommate, of removing a backpack, fireworks that had been emptied of their black powder and a laptop computer from Tsarnaev’s dorm room at the University of Massachusetts-Dartmouth several days after the bombing…