Mercedes Lee Tremblay was 25 and lived in Manchester, New Hampshire, when she and her two-year-old son Mason were found dead in their apartment on December 14, 2020. Mercedes, a former esthetician and a mother, was discovered with a single gunshot wound to the head. Authorities asked the public for information about their whereabouts after December 6, indicating the period investigators were trying to reconstruct.

By March 2021 the investigation had concluded that Mercedes died by a self-inflicted gunshot and that Mason died of compressional asphyxia; his death was ruled a homicide after he had been placed in a closet with furniture pushed against the door. Friends and family had set up a GoFundMe to assist with funeral expenses.

Does anyone who knew Mercedes or Mason, or who was in that neighborhood in early December 2020, have information that could help fill gaps in the timeline?