It’s tassel time: Commencement season is upon us Northeastern University May 8, 10:30 a.m., TD Garden Speaker: David Muir, ABC news anchor Honorary degrees: Muir; Lawrence S. Bacow, president emeritus of Tufts University; Vanessa Kerry, co-founder and CEO of Seed Global Health; and Gabriel Jaramillo, former chairman, president, and CEO at Santander Holdings USA.