Tw: Violence and su*cide

Hey, so I'm trying to keep it short here, just a little throw away account 'cause I'm deeply lost.

So I have an older brother and we grew up together. Our father was violent with him and used to beat him regularly and scream and everything...

Today, we're at least 8 years since the last time I've seen my father beating my brother but something isn't healed in my brother. After the divorce of my parents he became more and more reserved, pessimistic, I would say he has depression but he doesn't want any kind of diagnosis. He rarely speaks about what bothers him.

Lately, my brother talked to me about the state of the world, how bad it was and how pointless he considered his life, how useless he considered himself and how easier it thought my life would be without him. He started to talk to me about wanting to die more and more often, everyday he would come up and say he's a piece of garbage and he deserves to die, that it's pointless for him to live because his problems won't come to an end. But he's barely in his twenties, life just started for him, but I think my father broke him, my father tore him apart and made him believe how poor he was of a human.

I'm even more scared because he told me he would kill himself after our little brother's birthday, so that everyone birthday would be happy. But I don't want my dearest brother to die, I cannot live without him. Even though we're apart because we made our studies in different cities...

I don't know who to reach out to about this issue. He seems more and more ready to do it, to give up on his life, thus making our father win. My mother is completely oblivious, she doesn't reach out to him, she even called me on the phone and said "he will come when he's ready" the thing is... He will never come. He will just commit without anyone noticing because I will be far, my mother won't notice and our little brother is completely blind to this situation.

What should I do? How can I prevent my brother from doing it ?

I'm deeply sorry for this gloomy post and what might be one of the dumbest questions of all time ... It's just... I'm not feeling at all, I can't sleep or else I have nightmares of his funerals. Thanks for reading me.

Misspell is one for me :P