On Sunday at approximately 2:00 A.M. , 911 received a call that there was a unresponsive male in a home in the 700 block of South Maple in Pana.  Pana Ambulance and Pana EMS arrived on scene and requested the coroner to respond.  33 year old male Michael Zahradka of Pana was pronounced dead on scene.  Coroner Amy Winans has requested an autopsy.  An autopsy was held on Monday in Bloomington. Preliminary opinion of Mr. Zahradka cause of death is pending toxicology.  There is no evidence of trauma to the body.  Agencies  assisting with the investigation are Pana Police Department, Illinois State Police  Zone 4, and Illinois State Police Central Illinois Enforcement Group.