Dennis Koula, the wealthy father who was shot dead in his Wisconsin mansion along with his loving wife, Merna Koula, will have his story told on Wednesday's The Perfect Murder on Investigation Discovery. This season, the Perfect Murder has riveted ID viewers with bizarre cases of crimes that almost went unsolved. The episode covering the Koula case is called "Prescription For Murder," and will tell the story of how a pair of wealthy parents ended up murdered in the safety of their posh home. Could this be the work of intruders, or is the killer someone much closer to their hearts?
An autopsy report indicated that these deaths were not the result of natural causes. Dennis Koula had suffered a gunshot wound to the head and so had Merna. The couple had been dead for at least three days before they were discovered.