Would have never happened if trackmefindme had been invented and used on her mobile phone.  Tragedies such as this are the target of this wonderful mobile application, to keep track of loved ones, and if they disappear, you can find them.
http://www.people.com/people/article/0,,20312090,00.html

Thousand of children and young adults go missing or are abducted against their free will or better judgement. You can stop this. You can keep track of your children using Trackme Findme.
http://www.mauryshow.com/story/missing-kids-1/can-you-help-find-these-missin.php
http://www.missingkids.com

Thousands of children go missing everyday. You can help stop this. You can keep track of your children using Trackme Findme. If they do go missing, you know where to look, and you just might find them before it’s too late.
http://www.mauryshow.com/story/missing-kids-1/can-you-help-find-these-missin.php
http://www.missingkids.com