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A Brockton man been charged with fatally beating his girlfriend's 4-year-old son.

    Police on Monday arrested 32-year-old Antonio Durham on a murder charge in connection with the June death of Chauncey Cohen.

    The Plymouth district attorney's office says the boy's mother, 27-year-old Tania Merisca, was charged as an accessory after the fact.

    Chauncey was brought to Good Samaritan Medical Center in Brockton on June 2 by Merisca, who said he became unresponsive while she was bathing him. When the child died about an hour later, hospital officials alerted police.

    Investigators determined that the boy died of blunt force trauma to the abdomen.

    Merisca in June defended Durham.

    Both suspects are scheduled to appear in court Tuesday. It could not be determined if they have lawyers.  (Associated Press)