Mark Harmon reveals that the new book is based on a true story from the TV show "NCIS".

Mark Harmon reveals that the new book is based on a true story from the TV show “NCIS”.

Benjamin Hughes


</p> <p>Mark Harmon discusses how his new book brings a true story from “NCIS” to reality – CBS News
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Mark Harmon, the actor, and retired special agent Leon Carroll Jr., who serves as a technical advisor for NCIS, appear on “CBS Mornings” to talk about their new book “Ghosts of Honolulu” and their experience on the popular CBS series NCIS.

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Source: cbsnews.com