Client acquitted in Mattapan case
The defense investigation focused on the role of Kimani Washington, a career criminal whose story about participating in the armed robbery but leaving the scene before the murders, never made sense to most court observers. Eyewitness accounts described a silver/gray SUV with blue license plate driven by a bald headed man racing from the scene -- a match to Kimani and a Ford Edge he stole from a victim. Moreover, Kimani’s story changed repeatedly. Evidence showed he held a grudge against his cousin Edward Washington and had slashed his face with a cane--a stark contrast to his description of their relationship as “beautiful”. Defense lawyers Jack Cunha and Helen Holcomb were able to use the evidence to thoroughly impeach Kimani at trial. They also pointed to mistakes such as the Boston Police arresting Kimani just a few hours after the murders, holding keys to a silver SUV--but incredibly, failing to test him for gunpowder residue. Photos of the SUV were taken by some of the police-controlled security cameras dotting Mattapan, but they were not preserved by police.
Kimani later fled to New Hampshire where he was arrested. This case illustrated most graphically the problem with rewarding a cooperating witness of Kimani’s ilk with a deal that cut decades off a prison sentence for murder, if he had faced a jury.