WASHINGTON -- Vice President Joe Biden will travel to Cambridge, Mass., on Wednesday to attend the memorial service for the MIT police officer killed in the aftermath of the Boston Marathon bombing.

That's according to a White House official, who was not authorized to discuss the trip publicly and spoke on condition of anonymity.

Authorities say the two brothers suspected in the bombing shot 26-year-old Sean Collier multiple times on Thursday night in his police cruiser, killing him.

Collier's memorial service is planned for midday Wednesday at MIT's Briggs Field. The vice president's wife, Jill Biden, will also attend the service.

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  • CAMBRIDGE, MA - APRIL 19: A lone bicycle rider makes their way across the Longfellow Bridge to Boston from Cambridge while the Boston Area is under lockdown as a manhunt is underway for a suspect in the terrorist bombing of the 117th Boston Marathon earlier this week. (Photo by Jonathan Wiggs/The Boston Globe via Getty Images)

  • A woman looks out a window at her home as police start to search an apartment building while looking for a suspect in the Boston Marathon bombings in Watertown, Mass., Friday, April 19, 2013. Two suspects in the Boston Marathon bombing killed an MIT police officer, injured a transit officer in a firefight and threw explosive devices at police during their getaway attempt in a long night of violence that left one of them dead and another still at large Friday, authorities said as the manhunt intensified for a young man described as a dangerous terrorist. (AP Photo/Charles Krupa)

  • BOSTON - APRIL 19: The memorial at the intersection of Boylston and Berkeley Street had a few visitors during the lockdown in wake of the Boston Marathon terrorist bombings. A manhunt is underway for the second suspect. (Photo by Suzanne Kreiter/The Boston Globe via Getty Images)

  • Residents look out a window as officials inspect an apartment building in Watertown, Mass., Friday, April 19, 2013. Two suspects in the Boston Marathon bombing killed an MIT police officer, injured a transit officer in a firefight and threw explosive devices at police during their getaway attempt in a long night of violence that left one of them dead and another still at large Friday. (AP Photo/Julio Cortez)

  • Residents view police in tactical gear as law enforcement conduct a search for a suspect in the Boston Marathon bombings, Friday, April 19, 2013, in Watertown, Mass. Two suspects in the Boston Marathon bombing killed an MIT police officer, injured a transit officer in a firefight and threw explosive devices at police during a getaway attempt in a long night of violence that left one of them dead and another still at large Friday, authorities said as the manhunt intensified for a young man described as a dangerous terrorist. (AP Photo/Matt Rourke)