Darrell Waltrip has progressive brain disease, family says  ESPN NASCAR Hall of Famer Darrell Waltrip stepping away from public life after brain disease diagnosis, family says  wfmynews2.com Darrell Waltrip diagnosed with Frontotemporal Degeneration  Jayski NASCAR Legend Darrell Waltrip Stepping Away From Public Life For Health Reasons  FOX Sports NASCAR legend Darrell Waltrip diagnosed with cognitive disease  FOX8 WGHP