The FBI murder of Ibragim Todashev

The FBI murder of Ibragim Todashev—the man who knew too much? - World Socialist Web Site: 
"The killing of Todashev, and the rapid disintegration of the government’s official story—that he was shot after lunging at interrogators with a knife—is an extraordinary event. It casts into further doubt everything that has been said so far about the Boston Marathon bombings.
The report that Todashev was unarmed was followed Thursday by a press conference in Moscow, where the murdered man’s father, Abdulbaki Todashev presented a series of photographs of his son’s body taken at a Florida morgue showing that he had been shot six times in the torso and once in the crown of his head."