Almost anything you might want to know about Natalie Wood and Robert Wagner’s lives and her death and the investigation done at the time can be found in this really long 2000 Vanity Fair article:
One thing that comes up again and again from the article though is that the woman was desperately afraid of drowning.
Also, Robert Wagner is 87; if a reopening of the investigation focuses on him (or even if they just wish to talk to him again), then they’re potentially going to face some obvious problems.
