The victims were discovered on September 12. The jihad was committed on September 11.
Newly unsealed court documents in the case against Boston Marathon bomber Dzhokhar Tsarnaev provide new insight — and raise new questions — about a still-unsolved 2011 triple murder in Waltham.
One document revealed that Tsarnaev’s college classmate Dias Kadyrbayev was the previously unnamed prosecution witness offering to testify that Tsarnaev knew that his older brother was involved in the Waltham killings.
Kadyrbayev said Dzhokhar Tsarnaev told him in the fall of 2012 that Tamerlan “had committed jihad” in Waltham, according to an August 2014 letter from federal prosecutors describing conversations they had with Kadyrbayev’s attorney just days before Kadyrbayev pleaded to conspiracy and obstruction charges.
On Sept. 12, 2011, Brendan Mess, 25, once a close friend of Tamerlan’s, Erik H. Weissman, 31, and Raphael M. Teken, 37, were discovered in Mess’s apartment with their throats slit and marijuana scattered on their bodies. Presumed to be a drug-related crime, the case went cold.
Nearly two years later, Tsarnaev and his younger brother, Dzhokhar, planted two bombs near the Marathon finish line that killed three people and wounded more than 260 others in April 2013. The brothers also killed an MIT police officer.
Kadyrbayev was released from federal prison in August and was due to be deported to Kazakhstan, where he is a citizen.
The Middlesex district attorney’s office, which has been investigating the Waltham killings, has remained tight-lipped about the case. No one has been charged.
Yet another unsealed document raised new questions about Khairullozhon Matanov, a Quincy cab driver who was a friend of the Tsarnaev brothers and who took them both out to dinner only hours after the bombings.
In a previously sealed transcript of discussions in the spring of 2015 among prosecutors, defense attorneys, and the judge in Dzhokhar Tsarnaev’s case, the defense mentioned an FBI summary of an interview with Matanov in which agents questioned him about money wired to Russia sometime after the Waltham killings.
Miriam Conrad, one of Dzhokhar Tsarnaev’s attorneys, said Matanov was “apparently” roommates with Todashev at the time of the Waltham killings, according to the testimony.
In June 2015, Matanov was sentenced to serve 30 months in prison followed by three years of supervised release and faced deportation to his native Kyrgyzstan after agreeing to plead guilty to charges that he lied to investigators about the times he saw and communicated with the Tsarnaevs after the bombings.
Matanov also acknowledged that he deleted pro-jihadi documents from his computer after he recognized the Tsarnaevs as the suspected bombers, after their photos were released by the FBI.
It’s highly unlikely that just one of the Boston Bomber’s took on three men by himself and slit all their throats without a fight.