On behalf of the men and women of the Pittsfield Police Department, our thoughts and prayers are with Officer Collier's family and loved ones, together with all of the members of the MIT Police Department and campus community. Sean is an example of all that is best within American law enforcement. He now stands his eternal watch with St. Michael and all his fellow officers who have made the supreme sacrifice. His sacrifice serves as an inspiration to all who serve, and a reminder of the evils that we face on behalf of our communities. Stay safe and keep the faith. RIP Officer Collier.

Chief Michael Wynn

The men and women of the Massachusetts Association of Campus Law Enforcement Administrators send their sympathy to the entire Collier family, as well, to our brothers and sisters at the MIT Police Department. We stand together to assist all of you in the days to come in any way. Officer Collier exemplified the absolute best in professional policing and very well represented professional policing in an exemplary way. Be assured we will long remember Sean for his dedication to The MIT Police mission and for his unweaving devotion and commitment
to making our entire society a better place. His Patrol is now done may he be granted eternal rest in peace.

Chief Peter L. Carnes: Stonehill College Police; President MACLEA

We knew Sean at East Campus. We respected him. Many of us had contact with him, even fleetingly, even in difficult times. It is so sad to think that our time with him is broken -- time with someone who was sensitive and caring to those around him. We will remember his human decency, which can inspire us all.


On behalf of the men and women of the MassBay Community College Police Department, our thoughts and prayers go out to everyone at the MIT Police Department, as well as Officer Collier's family and friends. Officer Sean Collier represents all that is good in our profession, but his tragic death reminds us all of the evil we face as well. We will never forget the sacrifice he made to keep the MIT campus safe, a hero in the purest sense of the word. Stay Strong, Stay Safe, and remember your brothers and sisters in campus law enforcement are here to support you through this difficult time.

Deb Crafts Chief of Police, MassBay Community College

Ofc. Collier rest in peace. You were taken to soon. Rest with St. Micheal. From the Univ. of Ma. Police in Amherst thank you for your service

Lt. Robert A. Thrasher

"When a police officer is killed, it's not an agency that loses an officer, it's an entire nation."
Everyone at Tufts and Tufts EMS is mourning the loss of Officer Collier. He was taken too soon from this world.
Officer Collier will not be forgotten for keeping us all safe

Ayal Pierce, Tufts EMS Director of Training

Our thoughts and prayers to Sean, his family
and friends, and to all his fellow officers.
We are all proud to call you our brother.

Chief Stephen Goulet and Clark University PD

Our deepest sympathy to the family and friends of Sean. Our thoughts and prayers to our brother and sister officers at M.I.T. May the strength and courage of Sean's spirit carry you all through the difficult days ahead. Godspeed.

Chief Naughton and Worcester State University Police Department

Rosemary Naughton

Sean Collier looks like we all did when we first started in this proefession: Happy, caring, eager to serve, and excited for his future. Here at the Tufts University Police Department we morn Sean's loss while standing side-by-side with our fellow Officers at the MIT Police Department. Our thoughts an prayers are with Sean, all of you, and Sean's family. Sean Collier will always be an American Hero, and he'll remain forever in our hearts. Anything you need from us we are at your service.

Kevin Maguire, Police Chief, Tufts University Police Department

I write on behalf of the men and women of the Amherst College Police; We mourn the loss of Sean Collier, by all accounts a wonderful young man and a professional police officer. As the parent of a college student, I truly appreciate those that protect our campuses and make them safe places to live and learn. I am truly saddened that Officer Collier made the ultimate sacrifice and my heart goes out to his family, and his colleagues at MIT.

John Carter, Chief of Police Amherst College, Director at Large, IACLEA

May most merciful God welcome Sean home into his loving embrace. May God comfort his family, fellow officers and the M.I.T. community. Your watch has ended now. Rest easy, brave servant of God.

Fr. Bryan Wolf (Sgt. Rutgers Univ Police- retired)

With deepest condolences to Sean's family, friends and MIT Police and EMS service personnel. MIT has lost a true hero.

Edward M. Callahan Director of Public Safety Brandeis University

In the words of Sean's Stepfather:

"Every day they go out to keep us safe from the people who do evil in the world. I think we need to applaud them because one night it could be them walking down a dark alley."

Thank you, Sean for keeping my son, Michael, who works at MIT, safe.

Armand Rossetti

My thoughts and prayers go out to Sean's family and his brothers and sisters of the MIT Police Dept on the untimely and senseless murder of such an amazing young man. Thank you for your service!

Stacia Joyce, CFD/EPAC/EM

Thank you Sean for making the entire MIT community feel safe. We will never forget your courage.

Lizz McManus

A dedicated member of any organization providing public safety service, no matter whether in government or private sector, never knows what to expect when she/he reports for duty. RIP Sean.

Retired from fire service