Natalee Holloway mysteriously disappeared while on a school trip in Aruba back in 2005. How did this popular and responsible Alabama honors student completely vanish? Evidence points to the man Natalee was last seen with, Joran Van der Sloot. What happened on Natalee's last night on earth? How did Joran walk away from his crime? We hear from the people who knew Natalee best to get their story.