Hello Khotokarma, thank you for updating and kudos to your brother for doing this. Yes, people are skeptical on trusting an individual, but do not give up and keep up the good work. In the mean time try to collaborate with some authentic organizations to help people in an effective way. I heard about Bibeksheel Nepali group for sometime, here are the following links if you want to contact them.
website : http://leadnepal.com/earthquake/
facebook : https://www.facebook.com/bibeksheelnepali?_rdr
transparency document : https://docs.google.com/spreadsheets/d/18r1zVabedHTkZlKdJKMmkzF7zJroSOwBOiyWYnZ5xsY/pubhtml

If you can, then you can post the pictures of your brother helping the people, this way we can accumulate more fund for the basic necessity.

PS. : I am not connected with the above organization in any way but salute their effort on lot of things they have done so far