John Walsh’s son, Callahan Walsh, reflects on late brother Adam Walsh’s murder, capturing fugitives while filming Investigation Discovery’s (ID) ‘In Pursuit with John Walsh. ‘ He tells Karen, as director of the National Center for Missing and Exploited Children, he’s determined to help families in need after his parents endured their own personal tragedy in South Florida. Karen also revisits the local cold case of little Christy Luna who’s been missing for 35 years.
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