Please Help!!!!!!!!!!!!!!!!!!!!!!!!

True life story please read...
My elder brother whom I have been living with and who is my sole provider got married to another woman around six months ago after his first wife past away living him with a three years old son.
At first the new woman was the ideal wife bringing back the once gone happiness in the house.playing the loving and caring wife and a stepmother to my brother's son.
The first four months were perfect until she got want I think she wanted.a church wedding.
One month after the wedding was fine but after that she turned to a kung fu warrior and a beast.
She started mistreating my nephew and whenever I intervened she would tell my brother that i was being disrespectful and she started turning my brother against me.
Things turned crazier and she would beat me up but i never told my brother in fear of being thrown out of the house.
I later started seeing marks on brothers face and from there i knew that we were in danger and it was like my brother was bewitched.he never would listen to any negative talk about his wife.
I remember one day he came late and after beating him up she locked him out for the whole night.
I tried to talk to my brother but he wouldn't talk about it.and he even threatened to throw me out of the house if i continued interfering with his family. I chose to shut up.

Now she did it again and this time its much worse.she found him chatting with a lady neighbour and she stabbed him while he was asleep and pulled out his intestines.
Now my brother is fighting for his life in a hospital.and and am fearing we might loose him.
Please guys pray for my brother because I cant bear to loose him he is all I have and no where to go, his son needs him too.
We pray that your brother will walk out of that hospital well and healthy, he will not die.