.... Today would have been Ibragim’s 28th birthday, but he is not here to see it, because in the early hours of May 22, 2013, a Boston FBI agent shot and killed him in this very apartment, under circumstances so strange that a Florida state prosecutor has opened an independent investigation. According to the FBI, just before Ibragim was shot—seven times, in two bursts, including once in the top of the head—he was about to write a confession implicating himself and alleged Boston Marathon bomber Tamerlan Tsarnaev in a brutal triple homicide that took place in Waltham, Massachusetts, in September 2011....