My father passed away of a massive heart attack over a month ago. After the fact I tried looking up some information about it but I mnot sure I understand it. So please, do not copy/paste information. My dad had diabetes high blood pressure . He stopped smoking over 10 years ago. He also had a large belly ( but his legs and arms were tiny). I know those all increased his odds of having a heart attack. He has been eating really well for the last few years and had low cholesterol. So am I right to assume that his arteries were not blocked? He did not have a control on his diabetes... He also passed away in the shower. Did that make a difference? How long does the massive heart attack last before someone passes away? I would appreciate any help I can get