Karen, I'm very sorry you got this news about your Dad. Listen carefully to what HE wants when you get a chance to talk to him. If he wants to still fight for a little extra time with more treatment, give him as much support as you can (maybe that little extra time will allow him to connect with your brothers again). Try to keep the focus on what you can do for him, not anger at your brothers right now. You want his remaining time to be as peaceful as possible I think, right? regardless of how badly you think your brothers have acted (they'll have their own r4emorse to deal with eventually).

Nelie