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.

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

BPD will pay respects at 6:30PM to fallen MIT officer along Albany St from East Canton St to the Expressway. Please expect traffic delays.

BPD will pay respects at 6:30PM to fallen MIT officer along Albany St from East Canton St to the Expressway. Please expect traffic delays.-- Boston Police Dept.

People immediately started gathering.

At the common in #Wilmington Waiting for the procession of Ofc Collier to arrive. http://t.co/DmKcu9tu3v

At the common in #Wilmington Waiting for the procession of Ofc Collier to arrive. http://t.co/DmKcu9tu3v-- Chris Stygles

SCREENSHOT of MIT website right now dedicated to slain MIT police officer Sean Collier. http://t.co/1AeOrp6tPd

SCREENSHOT of MIT website right now dedicated to slain MIT police officer Sean Collier. http://t.co/1AeOrp6tPd-- msnNOW

Sean Collier's final ride begins. "Present. Arms!"

Sean Collier's final ride begins. "Present. Arms!"-- Adam Gaffin

Hundreds line the streets of #Wilmington for #MIT officer Sean Collier's final call. #bostonstrong http://t.co/9V9WpjZiQh

Hundreds line the streets of #Wilmington for #MIT officer Sean Collier's final call. #bostonstrong http://t.co/9V9WpjZiQh-- Julie Loncich

PIC: Officer Collier's family gathers along procession route. Lots of hugs, and tears #WCVB #Wilmington http://t.co/JA55tI1Wm0

PIC: Officer Collier's family gathers along procession route. Lots of hugs, and tears #WCVB #Wilmington http://t.co/JA55tI1Wm0-- Liam Martin

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

Hearse of MIT's Sean Collier leaving Boston just now http://t.co/Ml0IplPfUz

Hearse of MIT's Sean Collier leaving Boston just now http://t.co/Ml0IplPfUz-- Ross Kerber

Sean Collier's procession just passed and everyone on the other side of the highway stopped in respect #RIP #BostonStrong #USA

Sean Collier's procession just passed and everyone on the other side of the highway stopped in respect #RIP #BostonStrong #USA-- Dunny

MIT Police Officer Sean Collier's escort home. http://t.co/7e1pm86imb

MIT Police Officer Sean Collier's escort home. http://t.co/7e1pm86imb-- Boston Fire Dept.

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

Candles held high at Wilmington vigil for Ofc Collier. http://t.co/18Z3bvcAnI

Candles held high at Wilmington vigil for Ofc Collier. http://t.co/18Z3bvcAnI-- Jack Minch

Wilmington singing God Bless America after Sean's vigil was beyond amazing. #RIP http://t.co/es1lRzv1Jt

Wilmington singing God Bless America after Sean's vigil was beyond amazing. #RIP http://t.co/es1lRzv1Jt-- Nicole

So much love and pride at tonight's vigil #bostonstrong http://t.co/LIF45ZM6Bi

So much love and pride at tonight's vigil #bostonstrong http://t.co/LIF45ZM6Bi-- Adam Harding

Scenes from the vigil at Victory Field #watertown http://t.co/7cggYfcyQU

Scenes from the vigil at Victory Field #watertown http://t.co/7cggYfcyQU-- Watertown TAB

As vigil is held a half hour away in Wilmington for Sean Collier, MIT also remembers #Boston http://t.co/xOuqHtQqKh

As vigil is held a half hour away in Wilmington for Sean Collier, MIT also remembers #Boston http://t.co/xOuqHtQqKh-- George Colli

Such a beautiful vigil. I wish there was a way to thank each law enforcement officer individually #BostonStrong #CollierStrong

Such a beautiful vigil. I wish there was a way to thank each law enforcement officer individually #BostonStrong #CollierStrong-- Meaghan Bransfield

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