I was 12 when my 19-year-old brother, Brandon, was diagnosed with glioblastoma, the most common and aggressive form of brain cancer. I remember sitting in the waiting room at MD Anderson with my parents for nine hours during his first surgery, as I filed my nails down to nothing, watched the news and wondered if Brandon was really going to be OK like he said he would be. He fought his 22-month battle with pure grace, dignity and humor...