POLITICS
04/24/2013 05:36 pm ET

Elizabeth Warren, Joe Biden Speak At MIT Police Officer Sean Collier's Memorial Service (VIDEO)

On Wednesday, Vice President Joe Biden and Massachusetts Sen. Elizabeth Warren (D) spoke at the memorial service for Massachusetts Institute of Technology police officer Sean Collier, who was shot and killed allegedly by the Boston Marathon bombing suspects on April 18. Both politicians had a somber tone while addressing the thousands who had assembled to remember Collier.

"We are strong. We are Collier strong," Warren said. "We are Boston strong."

"We will miss you, Sean," Warren said.

As Biden approached the podium, the crowd stood up to applaud.

"I am standing for you, you should not be standing for me," Biden said to the police officers attending the service.

"I know from experience that there's not much that I am able to do to fill that void," Biden said of the officers' loss of their colleague.

Collier was allegedly ambushed by the bombing suspects as he sat in his police car three days after the Boston Marathon bombing. Before joining the MIT campus police force, Collier had worked at the Somerville Police Department as an information technology employee.

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