A former West Point cadet vanishes without a trace

Maura Murray's disappearance 17 years ago has left investigators and her family confused and dumbfounded. She was a former West Point cadet with dreams of becoming a nurse. Then one day after exhibiting strange behavior, she vanished.

Jack Murphy talks with her sister, Julie Murray, about one of the first disappearances of the social media age to capture the attention of the public.  What happened to Maura Murray?