Tough love

Opinions please My son turns 16 tomorrow. He lives with his dad as his behaviour at home became unbearable, I felt it was a matter of time before he hit me, he was swearing calling me names, throwing things at me, punching holes in my wall, spitting on my bedroom floor. He has always had anger problems, it's not a teenage thing or something that has started since the divorce, his dad had the same issues when he was young. I've tried everything and I mean everything to help him, nothing worked and I asked his dad for help but he wasn't interested. I couldn't take it anymore and didn't