No Witnesses. No Leads. No Problem. 7.84/10 2011-06-17 23 minutes.HDA brilliant young architect became ill and died just before she was to testify in a criminal trial. The autopsy revealed she'd been poisoned with arsenic; it was a slow and painful death, so suicide was unlikely. Investigators had to determine who among her family, friends and business associates had a motive for murder. [also marked as S7:E22]An: 2011Studio: TLC, truTV, Court TVPays: United States of America, Germany