Two best friends are stuck on an island for days. They have no food left and are starving from many days. Suddenly a fisherman sees them. He pulls his boat closer. Seeking the fate of one of them, he and on of the guy best decided to go fishing and find something for him to eat.
After a couple of hours, only the fisherman returns with the salmon fish that he had prepared. He tells the guy that his best friends had fallen from the boat and drowned. Although the news is shocking and remorseful, due to the unbearable hunger, he eats the salmon.
After being rescued, he goes to a restaurent and orders salmon fish. Just after his first bite, he pulls out his gun and kills himself right there. Why did he commit suicide?