I checked out his Instagram too and didn’t think it seemed cryptic, but rather him just being playful. It said he played a 2-hr game of Pickleball before his time in the jacuzzi. He looked very out of shape in the photo of him online a week prior, walking after lunch with a friend. Based on that, I guess cardiac arrest and then just flopped over in the jacuzzi and drowned. Only my guess, of course.