STONEHAM, Mass. —  Family, friends and colleagues paid their final respects to the Massachusetts Institute of Technology police officer who authorities say was killed by the Boston Marathon bombing suspects.

A private funeral Mass for Sean Collier was held Tuesday at St. Patrick’s Church in Stoneham.

Additional Photos

Mourners walk past police motorcycles as they depart St. Patrick's Church in Stoneham, Mass., following a funeral Mass for Massachusetts Institute of Technology police officer Sean Collier, on Tuesday. Collier was fatally shot on the MIT campus on Thursday, allegedly by the Boston Marathon bombing suspects. The Associated Press

Sean Collier had worked for the MIT police for a little over a year when he was shot to death pm April 18, 2013, on the school's campus in Cambridge, Mass., by Tamerlan and Dzhokhar Tsarnaev. AP

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A memorial service open to law enforcement and the MIT community only is scheduled for Wednesday on MIT’s campus. Vice President Joe Biden is expected to attend.

The 27-year-old Collier was shot multiple times as he sat in his vehicle last Thursday.

He had worked for the MIT police for a little over a year and had been offered a job with the Somerville Police Department.

He was a Wilmington native and a graduate of Salem State University.

He is survived by his parents and five siblings.