Tresner was last seen by a neighbor on the evening of 8/16/1993 and her daughter last spoke with her at 1830 hour that evening. The following morning a friend came to pick her up for pre planned event and discovered her missing. Tresner's daughter arrived and with neighbors assistance they searched for Tresner but she was not found. Sheriff's Office personnel could not locate her as well. Several possible witness accounts state that they saw a similarly described female walking in the area but these observations could not be confirmed.