Judge Rules to Hold Fourth Suspect in Aruba Case

An Aruban judge on Monday ruled that there is enough probable cause to continue holding a fourth suspect in the disappearance of American tourist Natalee Holloway (search), FOX News has confirmed.

A spokesperson for the prosecution confirmed to FOX News that Steve Croes, 26, who works as a disc jockey on a tourist party boat in Aruba called "The Tatoo," will now be detained for another eight days. The new timetable began at 2 p.m. EDT Sunday and will end next Monday.

Croes was brought to the Aruba court at 9:10 EDT Monday morning. Although authorities are not specifying exactly why Croes has been in police custody since Friday, it's known that the fourth suspect is in fact friends with the three other young men being held as suspects in the case of the missing Alabama teenager.

Croes was arrested Friday after giving police a statement, said Marcus Wiggins, his boss on the boat Tattoo.

Under Dutch law, which Aruba follows as a Dutch protectorate, authorities can detain people for up to 116 days without charging them.

Meanwhile, Aruban police have been questioning the father of a Dutch teenager held in the disappearance of Holloway, hoping the island justice official may know something to help solve the mystery of what happened to her, an official said.

Paul van der Sloot (search), a judge-in-training on the island, was questioned for two hours Sunday afternoon after five hours Saturday night, said Police Superintendent Jan van der Straaten.

Joran van der Sloot (search), 17, was one of the people last seen with Holloway the night she disappeared. Three other men have been detained, but no one has been charged.

Van der Straaten said the father was asked to come back Sunday because officials were not able to finish the interrogation on Saturday, but declined to give more details.

"He was questioned as a witness, no more or no less," van der Straaten told The Associated Press.

The attorney general's spokeswoman, Mariaine Croes, said witnesses are questioned when prosecutors believe they may be able to add something to the case.

"You may know something more or you may have seen something more, but you are not a suspect or thought to be part of any crime," Croes said.

During Sunday's interrogation, van der Sloot's wife, Anita van der Sloot, met with Joran in jail, said van der Straaten.

Holloway, 18, of Mountain Brook, Ala., disappeared in the early hours of May 30, the last day of a five-day vacation with 124 students celebrating their high school graduation. Her U.S. passport and packed bags were found in her room.

Joran van der Sloot and two friends said they took Holloway to a northern beach but dropped her off at her Holiday Inn, where they claim she was approached by a security guard.

On Saturday, a judge ordered Joran van der Sloot and his two friends, brothers Deepak Kalpoe (search), 21, and Satish Kalpoe (search), 18, to stay in jail for at least another week while the investigation continues.

Investigators refuse to say whether they believe Holloway is dead. Her mother, Beth Holloway Twitty, has said she will continue to believe the teen is alive until she has proof to the contrary.

Holloway Twitty, 44, sat in the front pew during a Saturday night Mass dedicated to her family at a Pentecostal church.

"We admire the strength and courage you've shown as a mother," pastor Gilbert Martes told Holloway Twitty, who listened to the sermon with her eyes closed.

Holloway Twitty has insisted that Joran van der Sloot and the Kalpoes hold the key to the investigation and that authorities pressure the young men harder to tell the truth.

In Alabama, a Holloway family friend said Holloway's relatives identified and located Joran van der Sloot and the Kalpoe brothers less than a day after the teen vanished. But the three young men were not detained until 10 days later.

"It's just disappointing that they [authorities] weren't able to move faster," Jody Bearman, who organized the graduation trip, told AP.

FOX News' Jonathan Serrie and The Associated Press contributed to this report.