This begs the question: How long was the time gap between NE doing the double murder, and NE leaving the house for his flight to UK? We know he was checking the computer with two dead bodies in the house, (according to his timeline). Just how many showers did NE take in that time frame? Your American showers are a lot better than our over here. How many showers would you have to take to remove GSR? I think he had enough time to keep the shower going constantly, get in, get out, do other things, get in again, and, out again, and again, and again. He had the time to do this. IMO