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b'In this Dateline classic, Dennis Murphy reports on the disappearance of filmmaker Allen Ross. When police come up with no answers, Allen\\u2019s friends and family devise a plan of their own to help solve the mystery. Originally aired on NBC on February 25, 2005.\\n\\nAdditional Footage: \\n\\u201cMissing Allen\\u201d/Tangram Films\\nThe Sundance Channel, L.L.C.'