The last confirmed sighting of Tad Cummins, 50, and Elizabeth Thomas, 15, took place at a Walmart in Oklahoma City on March 15, two days after the teen's alleged abduction.
SUBSCRIBE to ABC NEWS: https://www.youtube.com/ABCNews/
Watch More on http://abcnews.go.com/
LIKE ABC News on FACEBOOK
FOLLOW ABC News on TWITTER:
GOOD MORNING AMERICA'S HOMEPAGE: