No I really don't think he bumped Natalie off. When I worked in L.A. I would see her every Wednesday going up to her shrinks office in Westwood. And that was after they"broke up". People talked about her drinking. Behavior our of control. Being drunk and wobbly on a boat is just stupid. It looked like she climbed into the attached small boat and maybe fell or hit her head. But the person who probably knows is Chris Walken who was there drinking with Natalie and RJ. Seems like pact of silence.