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John Walsh of "America's Most Wanted" says the show plans to help find Jennifer Hudson's nephew, Julian King.

"["America's Most Wanted"] will be following the case extensively and plans to broadcast a special segment about this crime on the Saturday, November 1st broadcast," John says.

Authorities are still searching for the seven-year-old boy, who went missing on Friday. That same day, Hudson's mother and brother were found shot to death in their Chicago home.

"We urge anyone with information about Julian King's whereabouts to call us [anonymously] at 1-800-CRIME-TV or e-mail us at AMW.com."