Podcast:Dateline NBC Published On: Tue Aug 15 2023 Description: In this Dateline classic, Dennis Murphy reports on the disappearance of filmmaker Allen Ross. When police come up with no answers, Allen’s friends and family devise a plan of their own to help solve the mystery. Originally aired on NBC on February 25, 2005.Additional Footage: “Missing Allen”/Tangram FilmsThe Sundance Channel, L.L.C.