Twenty years after Scott Peterson was convicted of murdering of his wife and unborn son, his family is still proclaiming Peterson is innocent. Fox News Correspondent Laura Ingle talks with Nancy Grace about her new investigation, "Reporter's Notebook: The Scott Peterson Case."
Ingle tells Nancy about her new interviews witnesses and her return to the places prominent in the story. And Ingle reveals her in-depth conversations with Peterson's staunchest supporter, his sister-in-law,
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