Warrior cause of death a heart attack

TMZ reported today that the official cause of death for James B. Warrior (Hellwig) was atherosclerotic and arteriosclerotic cardiovascular disease. 

Essentially he passed away on Tuesday due to a massive heart attack.  He collapsed while walking to his car, clutching his chest while walking to his car in front of a Scottsdale, AZ, hotel..

Not reported in TMZ is that they are proceeding with a death investigation.  They are less concerned with how he died as compared to how he got there.  The findings will be made public when the investation, which could take several months, is completed.

Who would you have the most interest in for Fabricio Werdum's next title defense?