I'm ashamed to even call him my brother... Anyway. My brother is 24 years old. He lives with me and my parents. I am 15. He does not have a job. He does not pay rent. He sleeps all day and doesn't even clean up after himself. He drinks, smokes marijuana and cigarettes inside the house. He disrespects my parents on a daily basis. He is selfish when it comes to sharing the internet, which my father pays for. He has threatened to kill my father. The police was called but they only brought him back in the afternoon. In fact, the police has been called many times but they have never done anything. My mother doesn't do anything about it. She feels like my father should do something. But he doesn't do anything about it either. So I want to do something about it. I'm SO sick of my brother. I don't want him here anymore. My mother has hidden the kitchen knives in fear he will hurt us or himself. He has a very bad temper. I mean VERY bad. He hates all of us. He is also ungrateful. So I was wondering if there was any way to get him out of the house? There is no peace with him here. Can I do anything? Or would my parents have to go to court or something? Thank you for answering.

I had the same problem with my brother, the best thing to do is give him a choice. Change his ways and help round the house and learn how to respect others who live there and if he doesn't get rid. When he goes out to get some cigarretes or whenever he's out of the house pack his stuff and put it out front for him to collect. If there's any trouble get the police. You shouldn't have to put up with it.

YOU can do nothing except to to talk some sense into him.

You have no legal standing. Your parents own the house (or are the leaseholders) and they have to take the action to remove him. If they refuse to act, there is nothing you can do.

They have to follow the legal process to evict a tenant. They CANNOT just put his things our or lock him out of the house. He can simply call the police to allow him back.

If he is violent, they may be able to get a restraining order against him, which would bar him from coming to the house, but again your parents have to act.

You can't do anything because you are under 18 and it's your parents' house. They have to do it. Explain to them that they aren't doing him any favors and that he is probably disgusted with himself for being such a deadbeat. If he has money for booze, pot, and cigs, he can pay rent and utilities (instead, hopefully). Ask your parents to hand him a bill for same starting 11/1 and that he will be kicked out if he doesn't pay it. If he does any harm or threatens anyone, they don't have to evict him formally, they can have him bodily removed and can get a restraining order.
But... it sounds like they won't. Be glad of who you are and bide your time until you can go lead a responsible life on your own. With the economy so bad many young people are stuck at home and hating that they can't get a life. They worry and have regrets and secretly wish for a career and good relationship with someone. They cover it with a 'don't give a damn' attitude. Look for a soft spot in him sometime and see if you can find out what he had hoped for out of life by now.