According Associated Press' report, Judge Alan King has declared legally that Natalee Holloway dead.
Also from AP's report,
Natalee Holloway disappeared on a high school graduation trip May 30, 2005. She was last seen leaving a bar with van der Sloot that day. Her body was never found.
Since Natalee Holloway's father David accepted her death, he wished to stop paying her medical insurance and use her college fund for her brother.