From your link....
...However, she stated that on the balance of probability the most likely cause of death would have been cardiac arrhythmia - a condition which sees an “abnormal electrical impulse” in the heart, resulting in the heart beating too slowly, too quickly, or irregularly.
The pathologist explained that it was a condition doctors do not “fully understand” and due to Barry’s young age it was the most likely cause. She also added that the condition was hereditary, advising Barry’s siblings to consult a doctor for advice.....
🙄 🙄
🙃
Here’s another...
If docs don’t understand, it’s because they don’t want to.