The Killing of Tamerlan Tsarnaev's Would-Be Accomplice(Ibragim Todashev) Wasn't So Simple

Why it matters: A confession would have solved the triple homicide, and it would have cemented Tsarnaev's role in that crime. Since reading Dzhokhar Tsarnaev his miranda rights, investigators haven't been able to extract information about the Tsarnaevs as freely as they'd like — or at least it hasn't spilled out in public as much as the people of Boston would like to hear. A confession might have been a big piece in the puzzle of the Tsarnaev brothers. Instead, we're left with a Jack Bauer-style tale of secret confessions turned deadly, with more questions than answers.
What's perhaps more puzzling is that the story doesn't seem to add up: What new piece of information makes a guy who has been cooperating with FBI agents for the last month or so turn on them?          ***Read full story here***