Were there missed clues in a Boston-area triple-murder that could have disrupted the marathon bombings?
In September 2011, three close friends of Tamerlan Tsarnaev's were brutally murdered.Â Brendan Mess, Eric Weissman & Raphael Teken were found amid a gruesome crime scene - their throats slashed, ear-to-ear and drugs spread over their bodies.
For more than a year-a-half there were no suspects. It wasn't until after the Boston Marathon bombing that it became clear that Tamerlan Tsarnaev was a key suspect in both crimes.
In an OutFront Â investigation, our Deb Feyerick looks into the key players in the murder mystery who talk about some of the biggest errors authorities made in that case.