May 7, 2015 5:15 pm Boston Business Journal Report: Meet Mass. Commencement Speakers Reporter Mary Moore takes a look at some of the celebrities, politicians and business heads to visit colleges in the Bay State this graduation season. US & World Videos 24:50 @Issue: Biden signs the foreign aid bill, and a retrospective of Boston's 2024 Olympics bid 3:05 100 protesters detained at Northeastern University 2:39 Community mourns police sergeant killed on duty 4:32 Anti-war protester at Northeastern speaks amid arrests: ‘We are peaceful students' 5:39 Billerica police sergeant hit and killed by excavator during construction detail