He died of a heart attack when only 55 years old.
A few months later, his father died of a heart attack.
My father died of a heart attack some years ago.
Many people only find out when they have a heart attack.
Exactly one year later, his father died of a heart attack.
The cause of death was a heart attack, his family said.
My father had a heart attack when he was pretty young.
He died of a heart attack, a family member said.
They got no idea why I had a heart attack.
Just as he had been after the first heart attack, his face was turned to the window.