My brother and elderly mother live in another state away from myself and two other siblings. He has been diagnosed with bipolar but refuses to get help. He is verbally abusive to my mother and to anyone who visits. We are very worried as he has already stolen $7,000.00 from her. He also owns a gun and has threatened suicide. My mother enables and protects him because we believe, she is scared of him. We are all afraid to stay at her house now because he comes in the bedroom in the middle of the night. Any advice would be much appreciated. Thank you.