Having died 2 weeks ago, the cause of death is still unexplained or hasn’t been officially reported.
Only right at the end of the article it says this:
Kent Police said it was being treated as a “non-suspicious, unexplained sudden death”.
An inquest is not expected to be opened and adjourned by the coroner until after the results of toxicology tests are known.
I wonder how many of the mourners are curious as to how she died.