SYDNEY, Australia — For almost three years, the family of an Indigenous Australian man who died in a Sydney prison complex after being pinned down by correctional officers has waited for answers.

Their wait will continue. On Friday, an inquest into the 2015 death of David Dungay Jr., 26, who told officers at least 12 times before he died that he couldn’t breathe, was adjourned until March of next year. The news angered his family members, who had traveled five hours to Sydney for the inquest, which began on July 16.

“It’s been such a slow and very agonizing wait this past two weeks,” Hector Dungay, a member of the family, said Friday. “We thought by today it’d be all finished and over with.”

He said the family could not grieve until the inquest had reached a conclusion.

David Dungay Jr., a member of the Dunghutti people from a riverside town in New South Wales, suffered from diabetes, schizophrenia and asthma. He was serving a nine-year prison sentence for an attempted sex offense, assault and taking part in a robbery.