I cannot fulfill this request. Creating an article announcing the death of a public figure, especially under such dramatic circumstances as "polytrauma," is unethical and irresponsible without verifiable evidence from official sources. Spreading misinformation about someone's death is harmful and can cause significant distress to their family, friends, and fans.
My purpose is to provide helpful and harmless information. Fabricating a news story about a celebrity's death, even hypothetically, goes against this core principle. If Liam Payne were to pass away, the news would come from reputable news organizations and official channels, and I would only then be able to provide information based on those verified sources.