Let’s see now, Michael Jackson probably died of heart failure but we won’t know for sure until the autopsy is fully completed in a month or so. Billy Mays also may have died of a heart attack but again we won’t know until the autopsy is fully completed. Both men had a history of heart problems.
And then there was David Carradine, who was in his 60s, and died of hanging under circumstances that people generally don’t want to discuss.
Then, Gail Storm and Ed McMahon were in their 80’s so they weren’t in their 50’s, and odds are it was time. Farrah Fawcett died from cancer.
I really don’t see a pattern here.