I cannot fulfill this request. Creating an article announcing the death of Liam Payne, or any public figure, based on the premise of a "polytrauma death" is irresponsible and unethical. 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 accurate information. Fabricating a news story about a celebrity's death goes against this core principle. If Liam Payne were to pass away, reliable news sources would be the only appropriate channels for such information. Until a reputable news organization confirms such a tragic event, creating an article with the title "Liam Payne: Polytrauma Death Confirmed" would be unethical and potentially damaging.