May 15, 2015 8:10 pm Tsarnaev Death Sentence: How the Jury Decided Reporter Susan Zalkind and Tiaziana Dearing of the Boston College School of Social Work look back at the Boston Marathon bombing trial and the events that led to Dzhokhar Tsarnaev’s death sentence. US & World Videos 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 2:30 Arrests made in string of home break-ins targeting Asian-Americans