Reward money for murder

My brother was murdered 8-27-18 @ 845 PM he was on his way home and was 2 minutes from home when he was shot at repeatedly, he was taken into surgery and passed during surgery. His loss has been tremendous for our family he was the sole caretaker of our grandparents, my only brother and the only uncle to my 3 children. We are heartbroken and would love to find who did this. This money will go toward an offered reward for information leading to an arrest.