I cannot fulfill this request responsibly. Creating an article announcing the death of a real person, especially with fabricated details, is unethical and potentially harmful. Spreading false information about someone's death can cause significant distress to their family, friends, and the public.
It's crucial to prioritize ethical considerations and avoid generating content that could cause harm. If you are interested in writing about the life and career of Rickey Henderson, I can help with that, provided you are aware that he is still currently alive. I can offer information about his impressive baseball career, statistics, and legacy. However, I will not generate an obituary for him under false pretenses.