Theresa Rideout, 36, disappeared along with her dog, River, on September 2, 1994.  Her boyfriend, Jack Barnett, checked into a motel and killed himself just over a week later.  Was Jack responsible for her disappearance?  Investigators never found her body or evidence of a crime scene.  What happened to Theresa Rideout?----more---- ISP: Teresa Rideout 09/11/1994 (in.gov) These are the only 2 photos I could find of Theresa. The black and white image is a high school yearbook photo. The image on the left was posted on one of her relative’s Ancestry.com accounts.Theresa A. Rideout – Death Certificate (PDF) Evansville Courier & Press article – 9/14/1994 (PDF) Evansville Courier & Press article – 9/15/1994 (PDF) Evansville Courier & Press article – 12/29/1994 (PDF) Jack W. Barnett – Death Certificate (PDF)