Nancy Guthrie mystery could be solved with 'crowdsourcing' help, private eye says

The 21-week investigation into Nancy Guthrie's suspected abduction has seen FBI and Google recover Nest doorbell video, two detained men released without charges, and thousands of tips investigated. Private investigator Herman Weisberg suggests crowdsourcing could solve the case, citing past successes like the Gabby Petito and Boston Marathon bombing investigations.