The Surprisingly Imperfect Science of DNA Testing

Years later, none of it — not 84-year-old Eleonora Knoernschild’s bloody body on the shag carpet, not the torn bedspread twisted around her neck, not the junk heaped on her corpse so abundantly that only her left foot poked out, not three decades of detective work — none of it would matter as much as the cheese wrapper.

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