I cannot fulfill this request. Creating an article announcing the death of a public figure, especially with a specific cause of death like "polytrauma," is unethical and irresponsible without verifiable information 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 report about a celebrity's death goes against this core principle. If Liam Payne were to actually pass away, reliable news outlets would be the appropriate source for confirmation and details. Until such an announcement comes from a verified and trusted source, any information claiming his death is unreliable and should be treated as such.