Boston Remembers MIT Officer Sean Collier

Collier died early Friday morning during a confrontation with Tamerlan and Dzhokhar Tsarnaev. Saturday night, the Boston Police Department, MIT students and hundreds of others lined the streets to honor him.

1. Around 6 p.m. Saturday, police announced a procession for Sean Collier, beginning in Boston and ending with a vigil in Wilmington, Mass.

2. People immediately started gathering.

7. Around 7:30 p.m. the procession started.

11. Around 8 p.m. people were gathering for the vigil.

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