Authorities said on Monday they had arrested the son of a Boston police captain who was building bombs in his apartment and planned to attack a crowded university campus cafeteria on behalf of the Islamic State militant group.
A Massachusetts district attorney plans to bring state murder charges against Dzhokhar Tsarnaev, who has been sentenced to death in a federal trial for a deadly bomb attack on the 2013 Boston Marathon, her office said on Saturday.
Two college friends of the Boston Marathon bomber were sentenced to prison on Friday for removing a backpack containing empty fireworks shells from Dzhokhar Tsarnaev's dorm room amid a massive manhunt three days after the deadly 2013 attack.
A friend of the Boston Marathon bomber who admitted to obstructing the investigation into the deadly 2013 blast, one of the highest-visibility attacks on U.S. soil since Sept. 11, 2001, is set to be sentenced on Tuesday.
