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St. Louis (KSDK) - It's the book getting all the buzz these days, and Leisa Zigman gave us a first look last week.

PART I:Bitter Brew: New book details Busch IV's spiral into drugs, guns, paranoia

But there's so much more to "Bitter Brew" that we invited the author into the studio to hear more.

PART II:Bitter Brew: After the sale of Anheuser-Busch, Busch IV hits bottom

Click the video player above to watch Leisa's interview with Bill Knoedelseder.

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