How to get away from my dad!?

I am 14. I was living with my dad all the way until i was 13. It went down hill between us when i was 11. He constantly yelled at me for things i had no control over. He would threaten and even hit me once or twice. "I tore the family apart" i was "a little ***** like your mom" Those were only some of the things that would be shouted at me as i was pushed and yelled at. He drinks and when i asked him to stop he accused me of calling him a drunk. He takes what i say out of context and threatens me with it. At the begining of 7th grade i had had enough and i ran away after school. I was only pushed to that after months and months of fighting with him and getting blamed for everything that goes wrong. He would come home frustrated and no one knew when he was going to blow. But i was always the subject. I thought running away would bring the cops attention to my father but they laughed in my face. Along with my dad. They had no idea what kind of hell they were dropping me back into. For that whole year i was in and out of deppression, cutting myself, and had post dramatic stress symptoms such as numbness to the world and that thing where your body wont move when you are awake. Where you open your eyes but your body still is in a sleeping state. It was the scariest thing that would ever happen to me. I would get it a couple times a aweek. My mom finally threatened him with a lawsuit if he hadnt handed me over. Which he did. I am getting better but the transition from the big city to small town life was hard too. But i finally have some friends and am going to my highschool three times a week to workout with them. But this whole last year has been constant fighting. Back and fourth. Now he says he is taking me back. He wants to drag me back to the city for offering him money in an email so i can go visit my ailing grandmother. He got mad and said he was taking me away from my mom. But i wont go back to the depression and the numb feeling. I just got over it. I stopped cutting months ago. Im finally fitting in and doing things i love. Its like he doesnt want me to be happy. What can i do to get away from there. He has friends at the police station in chicago and has placed himself in good tidings with powerful people. I feel trapped. I just cant go back there. I was even considering suicide when i was there. Please someone tell me what to do?