On the quiet morning of November 19, 1978, a West Springfield police officer on patrol happened upon a grim scene at a rest stop off Route 5. Mark Harnish, a 20-year-old Caucasian male, and his companion, 18-year-old Theresa Marcoux, were found deceased just over a guardrail from Harnish's green Dodge pickup truck. Both had suffered multiple gunshot wounds. The truck's driver-side window was shattered, and blood was visible in and around the vehicle, a silent testament to the violence that had o
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