Alan Duke was last seen February 6 . Her parents called to report her missing January 31 . The covered water tank was four of four on top of the roof and was behind a locked door . Safety tips for travelers . Guests said black water could come out of tap for two seconds , then run clear .
Alan Duke was last seen February 6 . Her parents called to report her missing January 31 . The covered water tank was four of four on top of the roof and was behind a locked door . Guests said black water could come out of tap for two seconds , then run clear .