Three investigators tried to solve the mystery of what happened to Karen Silkwood on that dark highway the night of November 13th, 1974. An accident investigator hired by the union believed so strongly that Karen’s car had been forced off the road that he saved the bumper as evidence, handing it down to his daughter on his deathbed. A private eye pieced together a theory that Silkwood was under surveillance. And a state trooper launched his own investigation inside law enforcement. They all hit dead ends. Or did they?
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