Unsolved History - S2 • E10 - The Great Chicago Fire
John David DeHaanSelf - arson investigator and forensic scientist Lee GrossmanDennis Sullivan Bob Lauder Jr.Patrick O'Leary Daniel MartinezSelf - historian Erik NelsonExecutive Producer Julie RobinsonCo-Producer Dave HardingSupervising Producer Richard RossSupervising Producer James YoungerSupervising Producer 
