Back in 1978, the Kansas City police focused on James Lewis as a suspect in a missing person’s case. A serious mistake during an interrogation would come back to haunt them. But in 1982, that investigation provided valuable insight to the Tylenol task force. And it helped end the weeks-long manhunt for the extortion letter writer. Meanwhile, the Chicago Police’s main suspect, Roger Arnold, proved that he was a killer.For exclusive details about the Tylenol Murders and a transcript of this episode, visit <a href="http://www.chicagotribune.com/tylenolmurders">www.chicagotribune.com/tylenolmurders</a>.

Back in 1978, the Kansas City police focused on James Lewis as a suspect in a missing person’s case. A serious mistake during an interrogation would come back to haunt them. But in 1982, that investigation provided valuable insight to the Tylenol task force. And it helped end the weeks-long manhunt for the extortion letter writer. Meanwhile, the Chicago Police’s main suspect, Roger Arnold, proved that he was a killer. For exclusive details about the Tylenol Murders and a transcript of this episode, visit www.chicagotribune.com/tylenolmurders.

Back in 1978, the Kansas City police focused on James Lewis as a suspect in a missing person’s case. A serious mistake during an interrogation would come back to haunt them. But in 1982, that investigation provided valuable insight to the Tylenol task force. And it helped end the weeks-long manhunt for the extortion letter writer. Meanwhile, the Chicago Police’s main suspect, Roger Arnold, proved that he was a killer.For exclusive details about the Tylenol Murders and a transcript of this episode, visit <a href="http://www.chicagotribune.com/tylenolmurders" rel="noopener noreferrer">www.chicagotribune.com/tylenolmurders</a>.

Episode 5: Breadcrumbs

In 1982, the nation was living in fear. One by one people in the Chicago area were dying. No one knew why — or who would be next. Law enforcement mobilized to answer the what, who and why. The what was Tylenol, laced with cyanide, placed randomly on store shelves to kill unsuspecting victims. But the who and the why? That would elude investigators for decades.

If you think you know the story of the Tylenol Murders, think again. Award-winning Chicago Tribune investigative reporters Christy Gutowski and Stacy St. Clair uncover new and critical clues in law enforcement’s latest — and possibly last — attempt at closing one of the nation's most infamous unsolved cases.

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In 1982, the nation was living in fear. One by one people in the Chicago area were dying. No one knew why — or who would be next. Law enforcement mobilized to answer the what, who and why. The what was Tylenol, laced with cyanide, placed randomly on store shelves to kill unsuspecting victims. But the who and the why? That would elude investigators for decades. If you think you know the story of the Tylenol Murders, think again. Award-winning Chicago Tribune investigative reporters Christy Gutowski and Stacy St. Clair uncover new and critical clues in law enforcement’s latest — and possibly last — attempt at closing one of the nation's most infamous unsolved cases.

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Episode 5: Breadcrumbs

Episode 5: Breadcrumbs

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