Rumer Willis is opening up about her father's current state. The eldest Willis child took to Instagram recently to hold Q&A on her Story, where she offered an update on the Die Hard actor amid his battle with frontotemporal dementia. One fan asked how he's doing, and she responded: "People always ask me this question and I think it's kind of a hard one to answer." Related: Kanye West Says He Regrets Participating In 'Life' She went on: "The truth is that anybody with FDT is not doing great, but he's doing okay in terms of somebody who is dealing with frontotemporal dementia.