08/15/2011 at 07:00 PM EDT
Gary V. Giordano will remain detained in Aruba.
While authorities continue to investigate his suspected involvement in the mysterious disappearance
of travel partner Robyn Gardner, Giordano, 50, "will remain in custody for 16 more days," according to a statement released Monday by the Aruba Office of Public Prosecutor.
Giordano's lawyer, Michael Lopez, said the 16-day extension was granted because the judge felt, "there are too many open questions as of yet."
On Sunday, nearly two weeks after Gardner, 35, went missing, Lopez pleaded for the release
of his client, arguing that authorities don't have "hard proof" to believe he was responsible for Gardner's disappearance.
"We continue to be pleased with the way [Aruban authorities] have handled our daughter's case," Gardner's mother Andrea Colson said in a statement released shortly after news broke of Giordano's extended detainment. "We are still hoping to find out what has happened to our daughter, as we have not given up hope that she may still be alive."
With a striped shirt over his head, Giordano shambled from the police station in southern Aruba to an awaiting police van which was slated to take him to the KIA prison toward the southern tip of the island.
This particular prison was the same place Joran van der Sloot was held in the disappearance of Natalee Holloway. The prison overlooks Baby Beach, where Giordano says Gardner disappeared.