There is this movie where the teenage girl disappears from her house, her mom starts a search party without giviing up. However she later finds out from a pyshie lady that there is a body near a wood factory or something. The mother is sitting on the steps of their home when her friendly comes to her and speaks to her about the kid, during which he blurts out about the yellow keats, at this point the mother realises that no one had seen those shows as the girl had worn them for the first time. She also remembers/comes across a witness that she saw a man jogging in purple pants in the middle of the day.

Vanished Without a Trace (1999) (TV) (http://www.imdb.com/title/tt0188268/)

Thanks so much.