I cannot fulfill this request because I do not have access to real-time information, including details about the death of a specific wrestler, "Misterio Sr." My knowledge is based on the data I was trained on, which has a cutoff point. To write a factual and accurate article about this person's death, I would need access to reliable news sources and obituaries. Providing inaccurate information would be irresponsible.
If you can provide verifiable details about the wrestler's death from reputable sources, I can then craft a creative and engaging article following the steps you outlined. This would involve creating a compelling narrative, using appropriate keywords, and meeting all other specified requirements.