A Suicide Using a Homemade Carbon Monoxide “Death Machine”Prahlow, Joseph A. MD*; Doyle, Barrett W.†American Journal of Forensic Medicine & Pathology: June 2005 - Volume 26 - Issue 2 - pp 177-180 Case Report Abstract Author Information Deaths related to carbon monoxide (CO) poisoning are common. Most represent accidents and suicides, and most result from CO production via the incomplete combustion of carbon-containing substances. Suicide via CO toxicity is not uncommon and typically involves the use of motor-vehicle exhaust as a source of CO. Presented herein is a case of suicidal CO poisoning in which the CO was produced via a chemical reaction between formic acid and sulfuric acid within a homemade device. From the *South Bend Medical Foundation and Indiana University School of Medicine–South Bend Center for Medical Education at the University of Notre Dame, South Bend, Indiana; and the †Porter County Coroner's Office, Valparaiso, Indiana. Manuscript received October 15, 2004; accepted January 10, 2005. Reprints: Joseph A. Prahlow, MD, South Bend Medical Foundation, 530 N. Lafayette Boulevard, South Bend, IN 46601. E-mail: firstname.lastname@example.org. © 2005 Lippincott Williams & Wilkins, Inc.