Dennis Jones stood up during the trial and called a key prosecution witness a “rat” and a “snitch”.
A hallway confrontation interrupted the trial of two men accused of murdering four people in Mattapan back in 2010.
Kimani Washington admitted he was part of a plan to rob the victims of drugs and money.
Victims’ family members took the stand on Friday to testify against the men charged with killing four people in Mattapan on September 28, 2010.
The 16 jurors visited the site of the September 2010 killings Thursday.
Two men accused of killing four people — including a toddler — in 2010 are heading to trial on murder charges Monday.
A third man arrested in the September shooting deaths of four people in Mattapan, was ordered held without bail Thursday.
A third person has been placed under arrest in the murders of four people in Mattapan earlier this year.