This is absolutely tragic thing happened to you dear Tashkenty.After going through your experience I can feel your pain and grief.
I agree to this.Dear World is big and with lots of opportunities.I know it is easy for me to say not to get depressed but time will heal everything.This is an absolute nightmare for you and I pray to GOD to give you strength so that you revitalize yourself and be successful next time.Denial of my US student visa should not deter me to pursue my graduate studies.
Try for Canada,Austrailia or iff possible try again here.
Scholarship plays a positive role but is not essential.The officers look for one's committment to return to home land and sufficient finances for carrying out studies.am really confused, upset and angry. I have already presented a Certification of Study Leave from my office proving that my stay in the United States would only be until the duration of my study. What additional documents do I need to present to the consular officer to strengthen my US student visa application? Shall I wait for a scholarship or an assistantship offer from the UMN School of Public Health to further prove my financial capability?
Precisely,did the officer ask you the bank statements?In your case,I presume the reason of denial was your showing your aunt's account (relative's) for support.This is taken as unreliable because officers feel that finances won't be guaranteed if in future your relationship with your aunt deterriorates.
In that case you should have proved that excellent relationship exist between you and your relative. The order of preference for financial support are:
3. Savings(Parents and self)
6. Sponsorship(close relative)
7. Sponsorship (Distant relative)
So due to suspicion on the source of finances lead the officer believe that you will stay in US for a longer duration and possibly take up job to repay your loans.
I advice you defer your admission by an year or next semester , as it will be too late to apply for 2nd time VISA interview, and to strengthen your case.Study your case well and collect materials /documents that can make your case strong. Try for an external scholarship program.
For further help and assistence I will try best to help you out.Best Wishes always.