Your love and concern for your brother shows you are a kind-hearted person. What he is facing today is the result of his past karma. Our past bad karma are destined to result into Bad outcomes.. While reading your email, it was easy to make out the reason.. It is the rule of nature 'as you sow, so shall you reap'. As a family member is can be difficult to see him in such a condition. Be compassionate towards him but you must remain detached in order to help him better.
Through Rajyoga, as taught by God, we can solve this issue.
1. Whatever BK Shivani teaches are the direct versions of God. So it is most recommended for your whole family (including your brother) to attend 7 days Rajyoga course at your nearest center and connect to God, the supreme surgeon.
2. You said you all are giving him good vibes but no improvement is seen. This is because alone good vibes are not enough. To send REAL good vibes it is important to create an environment of purity around.. God told that Purity is the highest virtue -
Purity of food- Satvik bhojan (vegetarian diet excluding tamsik vegetables onion and garlic) + Offer this food to GOD (Bhog)
purity of water- charge water (most recommended, magical results)
4. Take Help from the hospital of Brahma Kumaris at headquarters. There are many surrendered doctors in Yagya who has given their lives for service. Two such names are BK Dr. Sachin Bhai and Dr Satish Gupta. They will treat your brother through both medical + Rajyoga.