Have you talked to the warden? Tell him/her that you don't want your brother to die alone. If you are up to it...and can do it.....ask him if you can stay with your brother. Sometimes people will bend the rules sometimes.
When my brother was dying in a convelscent hospital the charge nurse said that I couldn't stay with him. I went above her head and asked the administrator if I could stay. I was very professional and nice about it and I got to stay. The charge nurse was mad but too bad....I didnt care about her.....I was concerned about my brother not dying alone.
Only your mom knows her reasoning for her decision....... quilt will surely rear it's ugly head if he does die alone. When my husband was dying I made decisions that were tough on me personally, but it was what my husband had wanted that were more important. I have no regrets on his last couple of days even though it was the hardest thing that I have every been through. But I don't know I would have had the strenghth to do it if had it been one of my kids.
Take care.....lot's of thoughts and prayers.......
When the going gets tough....the tough get going! Don't always know where I going but I get there anyways.