During the nationwide manhunt, a Kansas City police sergeant unveiled shocking new details about the suspected extortion letter writer. On a flight to Chicago, he brought two suitcases packed with information to share with the Tylenol Task Force about their suspect. He told investigators the story of a different man. Someone who went missing a few years before the Tylenol murders.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>.

During the nationwide manhunt, a Kansas City police sergeant unveiled shocking new details about the suspected extortion letter writer. On a flight to Chicago, he brought two suitcases packed with information to share with the Tylenol Task Force about their suspect. He told investigators the story of a different man. Someone who went missing a few years before the Tylenol murders. For exclusive details about the Tylenol Murders and a transcript of this episode, visit www.chicagotribune.com/tylenolmurders.

During the nationwide manhunt, a Kansas City police sergeant unveiled shocking new details about the suspected extortion letter writer. On a flight to Chicago, he brought two suitcases packed with information to share with the Tylenol Task Force about their suspect. He told investigators the story of a different man. Someone who went missing a few years before the Tylenol murders.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 4: Gone to the Lake

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 4: Gone to the Lake

Episode 4: Gone to the Lake

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