Give him to someone who wants a free chicken soup. He hasn't made anyone bleed YET, but he will.
I spent 2 years trying to rehab a mean rooster, and it took him 2 years to stab my ankle. He met the broom the following day. He could live like a king, I gave him more chances than he deserved, but he worked as hard as he could to earn a miserable death.
My current rooster is lovely and a pleasure to have around and I wonder why I didn't kill the jerk earlier.
Your aggressive rooster deserve nothing. Don't waste your time like I did.