First LawBut we are not. They were both drinking, they get into an argument and she storms out of the cabin. Good ole RJ does not chase after her. With Natalie's hot headstrong Russian temper he had long since learned to let her go. Natalie attempts to leave the boat and slips into the water.A robot may not injure a human being or, through inaction, allow a human being to come to harm.
Robert Wagner would only be guilty of inaction which is not a crime for we humans. Cold blooded if he knew she was in the water but not a crime, especially if he was drunk too.
I often wondered if she was having an affair with CW.