Did they look?
Was an autopsy conducted?
If so, let's see the report.
If an autopsy wasn't conducted, why was that...?
From the US...
https://my.clevelandclinic.org/health/diseases/17522-sudden-cardiac-death-sudden-cardiac-arrest
Over 300,000+ Americans annually, usually in their 30s and 40s.
Gee, wonder if that number has fluctuated much, either way, since 2019...