Patrol Officer Sean Allen Collier

Patrol Officer Sean Allen Collier

Massachusetts Institute of Technology Police Department, Massachusetts

End of Watch Thursday, April 18, 2013

Add to My Heroes

Sean Allen Collier

Patrol Officer Sean Collier was shot and killed during a large scale manhunt for suspects in the Boston Marathon bombing.

At approximately 10:30 pm one of the subjects approached Officer Collier as he sat in his patrol car and opened fire on him without warning, striking him several times. The subjects then attempted to steal his service weapon but were thwarted by his level-three holster.

The suspects then carjacked a vehicle and led police on a pursuit while throwing explosive devices at pursuing units. The pursuit ended in Watertown, where one suspect was killed and a Massachusetts Bay Transportation Authority Police Officer was shot and seriously wounded in a gun battle. The second suspect was captured in Watertown the following evening after another shootout.

On April 10, 2014, Police Officer Dennis Simmonds, of the Boston Police Department, died of a brain aneurysm that may have resulted from a head injury he sustained during the shootout with the bombers. He had been struck in the head by shrapnel from a bomb that had been detonated during the shootout.

On April 8th, 2015, the brother who was arrested was convicted of murdering Officer Collier and 29 others counts related to the original bombing.

Officer Collier had served with the Massachusetts Institute of Technology Police Department since January 2012 and had previously worked as a civilian employee of the Somerville Police Department. On August 22nd, 2013, he was posthumously sworn in as a Somerville police officer. He is survived by his parents and five siblings.

Bio

  • Age 26
  • Tour 1 year, 3 months
  • Badge 179

Incident Details

  • Cause Gunfire
  • Weapon Handgun
  • Offender 1 shot and killed; 1 convicted of murder

ambush, terrorism

Most Recent Reflection

View all 951 Reflections

Sgt. Was a Hero. I pray that his family know that. The city of Boston don’t forget it brave Police Officers.
May you rest in eternal peace knowing you did your duty in the most honorable selfless way. May your family receive Blessings from on High.

Chief Police Chaplain Rev. Sandro Anaya Badge 2956
Always Praying for Our Hero’s Families, Coworkers, Community and Friend’s Comfort.

July 11, 2024

Want even more control of your Reflection? Create a free ODMP account now for these benefits:

  • Quick access to your heroes
  • Reflections published quicker
  • Save a Reflection signature
  • View, edit or delete any Reflection you've left in the past

Create an account for more options, or use this form to leave a Reflection now.