smith has apologized to the comedian. there's shocking news tonight from hollywood. action hero bruce willis, the 67-year-old, is stepping away from his acting career. his ex-wife, demi moore, shared the actor was diagnosed with a brain condition that can impact his ability to communicate. there was a statement signed by willis' family. we get more now from cbs' it carter evans. >> reporter: bruce willis is probably best known for playing action hero john mclane in the "die hard" movies. now the 67-year-old actor is facing a real-life challenge. today, willis' family posted "our beloved bruce has been experience something health issues and has recently been diagnosed with aphasia, which is impacting his cognitive abilities. with much consideration, bruce is stepping away from the career that meant so much to him." an estimated two million americans suffer from aphasia. it's caused by damage to the brain, which can affect a