Tsarnajev-bomberne kan ha stått bak et trippeldrap på tre jøder begått 9/11 i 2011. Det er slektninger som har slått alarm om en mulig forbindelse. Rettsmedisinere driver undersøkelser.

There is “mounting evidence” which suggests that Boston Marathon bombing suspects Tamerlan and Dzhokhar Tsarnaev were involved in an unsolved triple homicide in 2011, according to Massachusetts investigators.

Forensic evidence from the crime scene matched the brothers’ DNA, and cell phone records put them in the area of the murders on the date they occurred, officials told ABC News.

In the wake of the Boston Marathon bombings, authorities in Middlesex County began to investigate the link between Tamerlan and Brendan Mess – one of the three men killed in the triple homicide.

Mess and two other men were found in a Waltham, Massachusetts residence with their throats slit and their bodies covered with marijuana on September 11, 2011. Tamerlan and Mess were once roommates and practiced boxing and martial arts together.

The officials stressed that until more definitive DNA testing is complete, it is still too early to bring an indictment against the surviving suspect, Dzhokhar.

The cold case was made active again once the victims’ family and friends saw the Tsarnaev brothers’ photos in the media. It was then that they were reminded of Tamerlan’s behavior after the murders. He did not attend Mess’ funeral and disappeared from the martial arts gym where the men had sparred together.

A spokesperson for Middlesex District Attorney Marian Ryan declined to comment on the brothers’ possible involvement. Miriam Conrad, one of the attorneys representing Dzhokhar Tsarnaev, also declined to comment through her legal assistant.

Tamerlan, the deceased suspect, was buried in a Virginia cemetery, according to a death certificate released Friday. The document says that he was shot by police before being run over and dragged by a motor vehicle.