First he told police he was at home on Sept. 28, 2011, when two men, a 21-year-old woman and her 2-year-old son were marched up a Mattapan street then shot to death. Then, Dwayne Moore changed his story, telling police that he had been at the scene, but fled. Moore, the 35-year-old charged in one of the worst killings in the city’s recent history, was inconsistent about his whereabouts that night, but during the ten hours that he sat with two Boston homicide detectives, he was adamant about his innocence.
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