WAAY worked in WAAY office in building where crash happened , IRS reports . Both men died from blunt force injuries , medical examiner 's office says . Authorities : `` I saw it written once that the definition of insanity is repeating the same process over and over and expecting the outcome to suddenly be different , '' the online message says . Rayford Walker flew single-engine plane into Two -story building . Stack set his home on fire before his flight , authorities say .
WAAY worked in WAAY office in building where crash happened , IRS reports . Both men died from blunt force injuries , medical examiner 's office says . Authorities : Rayford Walker flew single-engine plane into Two -story building . Stack set his home on fire before his flight , authorities say .