A hearing has been postponed for a Philadelphia architect fighting a subpoena to turn over documents in a fatal building collapse.
Plato Marinakos has been asked to turn over his demolition plan, photographs and related correspondence to the Occupational Safety and Health Administration.
His lawyer has refused to release some of the documents, citing Marinakos' Fifth Amendment right against self-incrimination.
A Philadelphia grand jury investigation is underway in the June 5 collapse, which killed six people inside an adjacent thrift store.
Demolition subcontractor Sean Benschop is the only person charged so far. He is facing six counts of involuntary manslaughter. Several civil lawsuits have also been filed.
Benschop was never named on the demolition permit. It was issued to Marinakos, an "expediter" working for developer Richard Basciano.