Faith Hedgepeth murder case pretrial hearings wrap; defense focused on missing blood sampleA judge heard hours of testimony regarding a piece of forensic evidence that vanished during the investigation into Faith Hedgepeth's murder. A judge heard hours of testimony regarding a piece of forensic evidence that vanished during the investigation into Faith Hedgepeth's murder. A judge heard hours of testimony regarding a piece of forensic evidence that vanished during the investigation into Faith Hedgepeth's murder. A judge heard hours of testimony regarding a piece of forensic evidence that vanished during the investigation into Faith Hedgepeth's murder. Six witnesses testified during an evidentiary hearing, including forensic evidence specialists, a state crime lab scientist and the lead Chapel Hill police investigator on the case.