Aug 27, 2018 Senator McCain's death sheds light on glioblastoma, most common form of adult brain cancer Senator McCain’s death sheds light on glioblastoma, most common form of adult brain cancerNewswise | August 27, 2018. The death of Senator John McCain (R-Ariz.) sheds a new light on glioblastoma, a form of brain cancer that the American ... read morePublished on 2018-08-27