A Shooting In a Public Place

Shipwreck, away from home, a Nurse witness a shooting in a public place. Who was the shooter? and who received the bullet? The airplane pilot asked the question, and no one seem to know the answer on the island where they were shipwrecked. The tide was beginning to go out during the evening. The nurse and airplane pilot spotted a passenger's puppy. There was a structure on the island that looked pretty much like a cabin. A cabin where the new inhabitants can live while waiting to be rescued from the tropical island.