The FBI is investigating the notorious Unabomber’s involvement in the Chicago-area Tylenol killings. Ted Kaczynski, the man behind the mail bombings that spanned nearly two decades, is currently serving a life sentence in a Colorado prison. He claims he had no involvement in lacing Tylenol capsules with potassium cyanide, a crime that killed seven people

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FBI Seeks Unabomber’s DNA in 1982 Tylenol Poisoning Case