Paris Hilton, screaming and crying out for Mom, was sent back to jail.

She'd been released, due to an unspecified medical condition. Papers outlining that condition as grounds for release were to be sent to the court, but the judge said the papers never arrived. From Linda Deutsch at AP:

Every few minutes, the judge would interrupt proceedings and state the time on the clock and note that the papers still had not arrived. He also noted that he had heard that a private psychiatrist visited Hilton in jail and he wondered if that person played a role in deciding her medical needs.