Michelle Lyn West was 23 when she was last seen on July 9, 1991, in Tucson. She had been living with her parents and two young children in an apartment near the 4100 block of East 29th Street. On the day she disappeared she left the building planning to walk to a friend’s nearby home; what happened after she left is unclear.

Investigators say it is not known whether West reached the friend’s residence and found no one there, or whether she vanished while making the short trip. There is no confirmed account placing her after she departed, and she never had known contact with her children or immediate family following that walk. She was described as about 5 feet 4 inches to 5 feet 6 inches tall, 130 to 135 pounds, with brown hair and brown eyes, wearing jeans, a tie-dye shirt and a red sweatshirt, possibly red-and-black checkered.

The Tucson Police Department is investigating under case number 9107090938 and renewed an appeal for information in March 2026; investigators say they believe she may have been the victim of foul play and continue to seek anyone who knew, saw, or has information about her movements. Does anyone who lived in that neighborhood in 1991 remember seeing Michelle or her clothes that day?