In a quiet 55-plus community in Belchertown, Massachusetts, the life of 56-year-old Diane Opper was tragically cut short on the evening of Friday, March 27, 2026. What unfolded inside her home on Daniel Shays Highway would soon become the subject of a homicide investigation, leaving a community in shock and a family in mourning. That evening, a 911 call was made by Diane’s husband, Mark Opper, also 56, who initially claimed his gun had accidentally discharged, resulting in his wife being shot.
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