The provided text, "My text," contains information solely about the name "Jon," its origins, meanings, and grammatical usage. It does not include any details about a person named "Jon Shevell," nor does it mention a "cause of death" for anyone. Therefore, I cannot create a blog post about "jon shevell cause of death" with reference from "My text" as requested, because the necessary information is absent from the source material. Generating such content would require inventing details, which goes against the instruction to "Don't assume, add or create your own context" and to ensure factual accuracy.