BRIDGEWATER (CBS) – The wife of a man who died trying to break up a fight outside a Quincy bar says she needs answers.

It’s been more than a month since Christopher McCallum, of Bridgewater, died outside of an American Legion Post and police have made no arrests.

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Christopher McCallum (Family Photo)

McCallum was trying to break up a fight in January when he was pushed fell and hit his head. He was found bleeding and unconscious outside the bar.

His wife, Kathy McCallum, wants to encourage whoever threw that deadly punch to come forward.

“Our loss is forever because of his decisions, so we would just ask that anyone who has information to come forward,” she said. “We just need justice for him. We need justice for ourselves. I mean, there’s no excuse for what happened.”

Kathy McCallum (WBZ-TV)

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Chris was at the bar with his brother to see a concert. Afterwards, a young group got rowdy and when Chris tried to break up the fight, “He got blindsided,” Kathy said. “He got sucker punched and fell and knocked his head. Fractured the base of his skull.”

His death shocked Kathy and their three teenage sons.

“It’s just a big loss for all of us. I don’t know how to be here without him,” Kathy said. “The boys too. There’s just an empty hole. He was the fun. He brought the fun.”

Christopher McCallum (Family Photo)

The one step that may help her heal, Kathy says, is to see the person who did this behind bars.

Quincy police withdrew from this investigation because many officers know or grew up with people who were involved in the incident. They’ve handed the case over to the Norfolk County District Attorney’s Office.

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A GoFundMe page for the family has raised more than $250,000. The family says they will close the page this weekend.