Bruce Willis' family announced he has dementia. Last year, Willis was diagnosed with aphasia, which affects speech. His family said that has progressed into frontotemporal dementia.br br #brucewillis #dementia #news br br "CBS Evening News with Norah O'Donnell" delivers the latest news and original reporting, and goes beyond the headlines with context and depth. Catch the "CBS Evening News" weeknights at 6:30 p.m. ET on the CBS Television Network and at 10 p.m. ET on the CBS News app.