Can I post here? I'm at my wits end and I don't feel like I have anywhere else to turn.

I am an adult woman. I'm married and have two kids.

I have one older brother. He STILL lives at home. He is in his mid 30's. He has never moved out of my parents home. He was diagnosed with bipolar disorder at a young age (teenage years), before that he had been given the diagnosis of ADHD at the age of 5.

His bipolar disorder basically runs my parents lives. They are getting older now and I am afraid that they will die from the stress that my brother constantly causes them.

He doesn't work. He dropped out of school long ago. He sits on his butt playing video games or watching pornography. He engages in sexual behavior with strangers off the internet. He is a total slob, and has completely destroyed the downstairs of my parents house. It's absolutely disgusting down there. Trash, dirty clothes, used dishes, cat poop etc.

To make this all worse, about a year and a half ago he came home with some girl that my parents had never met. He had married her. He moved her in to my PARENTS home. She also has mental illness.

Now my parents have TWO adults living in their home. Neither of them work. Neither of them clean up after themselves.

My parents both work hard, working 40 hours a week. And then they have to come home and clean up the disgusting messes left behind by my brother and his wife.

My brother and his wife use my parents cars. My parents give them money. My brother and his wife eat all the food in the house. My mom literally has to hide food or she won't have any food to eat. My brother's wife steals from my parents. She steals money from their wallets and purses and she steals my mom's clothes (one time my mom had a brand new outfit, still with tags on, still in the shopping bag, and my brother's wife took it and was wearing it around the house. My mom confronted her and she denied taking the outfit from her!)

Why do my parents put up with all of this? Because anytime my parents ask him to clean up after himself, or to look for a job, or do ANYTHING besides sit on his butt, he FREAKS out and threatens suicide. He'll break things. He's broken my parents computers, their tvs, his own playstation or xbox (which he made my parents pay to replace). Once he threw something at my mom. He'll grab a knife and hold it to himself and threaten to kill himself. Or he'll run out of the house towards the nearest bridge and say he's going to jump off the bridge and kill himself.

I've told my parents that he is manipulating them. He uses his threats of suicide as a way of controlling them. But they don't see it that way. They are really afraid he will hurt himself. So they back off. And things go back to the way they are.

Last week my mom told him that him and his wife have 6 months to get jobs or they need to move out. He freaked out, ran towards the nearest bridge, threatening to kill himself. My mom called 911 and they admitted him involuntarily to the psych center. He was there for two days.

Now that he's out, he posted a VERY long rant on facebook, publicly accusing my parents of not caring about him or his mental illness. He posted a whole list of reasons why he can't work.

I just can't stand this situation any longer. I can't stand to see my parents treated so badly. They are the sweetest people ever. I am very close to them and it hurts my heart to see him manipulate and control them.

What can I do??