On April 15, 2013, two brothers, Tamerlan and Dzhokahr Tsarnaev, exploded bombs at the finish line of the Boston Marathon. Tamerlan died a few days later in a shootout with police in Watertown. Dzhokahr is currently awaiting an appeal on his death penalty conviction.
However even now, more than four years later, there are many unanswered questions about Tamerlan and what the government may have known about him before the bombing.
Those questions are the focus of a special Radio Boston hour, airing Thursday, June 15 at 3 p.m. Meghna joined WBUR's Morning Edition Wednesday to preview the special.
Editor's Note: The audio conversation above indicates the special hour would be airing today, Wednesday, June 14. However, due to ongoing national news, the hour will now be airing tomorrow, Thursday, June 15.
This segment aired on June 14, 2017.