Sentence 1: Shortly after his son , Santha , was drowned in a swimming pool under mysterious circumstances , Jagath died of heart attack on April 11 , 1981 .
Sentence 2: Shortly after his son , Jagath , drowned in a swimming pool under mysterious circumstances , he died of a heart attack on April 11 , 1981 .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?