A group of Massachusetts police departments came together over the weekend for a 4-year-old boy — whose mother was found murdered last month — to give him the ultimate Christmas celebration.

Police officers from Fitchburg and other neighboring departments met with the child, named Jaiden or "JJ," in Leominster on Sunday "to give him a special gift this holiday season."

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JJ, who now lives with his grandparents, was presented with a bicycle and other gifts, along with "a parade of police cars" and cheerful officers who wanted to brighten his holiday, the first Christmas without his mother, Kelsey Clifford.

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Clifford, 26, was found dead from serious head trauma and other wounds near a wastewater treatment plant in Athol on Nov. 11, according to the Northwestern District Attorney's Office. Keith Hamel, identified by local news outlets as a friend of Clifford's boyfriend, was charged with murder in connection with her death.

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"We were happy to make a Christmas wish come true for a Leominster boy today," the Fitchburg Police Department wrote on Facebook. "Our thoughts are with JJ and his family during this difficult time."