Dutch forensics experts are investigating whether a bone found in Aruba belongs to Natalee Holloway, the American teenager who disappeared five years ago. According to De Telegraaf, a Dutch newspaper, Aruban tourists discovered the bone on a beach Friday. The Netherlands Forensic Institute has begun testing the bone to see if it is Holloway’s, although it is still not even clear if it’s human. Joran van der Sloot, the longtime suspect in Holloway’s disappearance, is facing murder charges in Peru. Since Holloway’s disappearance in 2005, van der Sloot has allegedly claimed to know what happened to the Alabama high school girl, and just this summer, claimed he knew where her body is located.