Robert Doerr was a 28-year veteran of the Evansville FireDepartment in Indiana. One evening, after returning home froma 12-hour shift, he was shot in his driveway. Police werebaffled until a slip of paper hidden inside a condolence cardwas discovered. The investigation became a family drama,leading a son to turn against his father. Now, in an all-new"20/20," ABC News correspondent John Quiñones reports on whatauthorities say was a twisted murder plot driven by greed, sexand allegations of an illicit affair. Exclusive interviews withthe family and witnesses, along with the body camera footagethat captured the vital moments after the firefighter wasgunned down as police arrive on the scene on.
