We were in Grand Case Saturday and Sunday evening. We left Blue Martini at 11:30-12 Saturday and there was nothing out of the ordinary. The vibe Sunday night was very somber in Grand Case. At that point we didn't know what happened. Eating @ Scooby's there was a young man visibly upset who knew one of the victims. He mentioned what had happened was distraught. Today at Mullet Bay, we met a young lady that lives on the island. She said the 2 men knew each other and went to school together. The shooter went home to get his gun and then returned to the party to confront the girl...Awful.