Denny seemed a light high strung. Had to really like his intensity. Best wishes to his family and friends.
Some interesting reading here.
http://www.heart.org/HEARTORG/Condi...ac-Arrest_UCM_307905_Article.jsp#.V5JPJ_xriUk
It says that Cardiac-Arrest is when the heart stops beating. It's not a heart attach. "Each year, more than 420,000 emergency medical services-assessed out-of-hospital cardiac arrests occur in the United States.......Cardiac arrest is caused when the heart's electrical system malfunctions. In cardiac arrest death results when the heart suddenly stops working properly. This may be caused by abnormal, or irregular, heart rhythms (called
arrhythmias)."