March 25, 2019 12:35 pm One Killed in Head-On Bicycle Crash in Lexington One person was killed Sunday after a head-on collision between two bicycles on a popular train in Lexington, Massachusetts. US & World Videos 3:05 100 protesters detained at Northeastern University 2:39 Community mourns police sergeant killed on duty 2:50 Community mourns Billerica police sergeant killed on duty 4:32 Anti-war protester at Northeastern speaks amid arrests: ‘We are peaceful students' 10:42 Multiple people arrested as police clear campus encampments