On a warm late spring day, 16-year-old Mistie Murray told her mother she was going to band practice after school. The problem was, there was no band practice, and Mistie never came home. Did tunnel vision prevent police from closing a solvable case?

Sources:

https://lfpress.com/news/local-news/lfp-archives-the-enduring-mistie-murray-mystery

https://www.fact.on.ca/news/news0006/np000606.htm