Someone said to me, "How's your rabbit food?" I said, "Fine." ... "How's your vulture food?"
You're damn right we need a rational code of morality and ethics. But not much progress can be made in that direction while we've still got a majority ranting about gods, devils, souls, and absolute morality, and using an ancient book written by ignorant nomads as a guide.
The investigators are gathering evidence all the time and they've put together a package of evidence.