The Berkshire District Attorney's Office has determined that a police officer fatally shooting a suspect in Pittsfield was an act of self defense when all other options were exhausted.
Miguel Estrella was killed in March after he charged at officer Nicholas Sondrini with a knife, forcing Sondrini to shoot him.
Officers had responded to a disturbance at Estrella's residence.
His family said he had mental health issues, and D.A. Andrea Harrington asserted that many systems failed Estrella.
Officials say Sondrini is resuming normal duties.
(Picture provided by Berkshire County DA's Office)