December 22, 2016 12:40 pm Suspect in Custody May Have Been Involved in 3 Armed Robberies A man who police believe may have been involved in an armed robbery in Massachusetts on Wednesday is in custody, and may have done two others. 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