I think what you need to remember for everyone who believes him, someone will believe you and they’re the ones to invest your time in. You may not be able to go further with the court process with him, but as he has a known history it may just be that WHEN he does it again, because he will do that person he does it to will have enough evidence to be able to take you to court.
I think we can often be so consumed with anger we stop ourselves from healing. If you haven’t already I strong recommend stop focusing on revenge or him getting his compuence focus on self healing and that alone is all you’ll need in the end. Counselling and therapy worked a treat for me. My ex is still walking around and controlling me through our daughter, but my strength comes from people believing me and knowing I escaped him.