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contributed photo Jerry and Patty Wetterling, in their St. Joseph home, met many times with ABC-TV news co-anchor Deborah Roberts (left). The couple and many others will be the subject of a two-hour documentary about the Wetterlings and their long search for their son, Jacob, who was abducted in October, 1989. The "20/20" program will air at 8 p.m. (Central time), Friday, Oct. 13.