Remember Natalee Holloway, the teenager who disappeared three-and-a-half years ago on a class trip to Aruba? According to CNN, police are investigating two new tips. A new witness has emerged who can place prime suspect Joran van der Sloot and his father near a pond on the island at 4 A.M. on the day of her disappearance. The pond was not searched in the earlier stages of the investigation. Three other witnesses have emerged, including an ex-girlfriend of van der Sloot. The head prosecutor also said that he expects that a videotaped interview, in which Van der Soot admits that a friend helped him to get rid of the body, will be admissible in court.