110: MISSING without a trace: Where is Helen Frost?
In 1970, 17 year old Helen Claire Frost had had a few rough months after being forced to give up her newborn baby girl. One day in October, she headed out for a 'quick walk' after inviting her sister along, who declined, and she never returned. In all these years there's never been a single clue, but someone must know what happened to Helen.