A good question for your doctor. However, probably found two areas of blockage. This combined with a seeing two areas of damage to the heart muscle could cause this conclusion.
Sit the patient upright, get them to chew an aspirin and call 999/911 immediately. Minutes count! Be sure to tell the crew that they have had an aspirin already.
No he did not die of a heart attack, he had a cardiac arrest which different than a heart attack. With a heart attack your heart is still pumping blood and the blood is flowing through your body and...