The UPWARD direction of the scrape on Natalie's left cheek could NOT have been made in any way from a slippery dinghy or any attempt to board it. More than likely, it was made from contact with Rj's jewelery when he struck her or dragged her off the newly repainted swim step into the water. Sand is always mixed in to make those steps safer and provide extra traction to prevent people from slipping off them, as RJ would make us believe happened to Natalie. That doesn't hold water anymore, does it?? (no pun intended!!)Hope all the cold case investigators are on top of these old issues. Never too late for Nat !!