A Massachusetts police department is investigating a Facebook comment by an officer who wrote “Hahahaha love this” in response to a story about a car crashing into counter-protesters at a white supremacist rally in Charlottesville, Virginia, killing one person and injuring at least 19 others.

Springfield Police Commissioner John Barbieri says he received a complaint about the comment Sunday and opened an internal investigation.

Heather Heyer, who was killed while protesting against white supremacists in Charlottesville, Virginia.

Officer Conrad Lariviere wrote in response to the violence: “Hahahaha love this, maybe people shouldn’t block road ways.”

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In a Facebook interview with Masslive.com, Lariviere says he’s a “good man who made a stupid comment.”

Democratic Mayor Domenic Sarno says: “There is no place for this in our society, let alone from a Springfield Police Officer.”

An Ohio man is charged with second-degree murder and other counts over the crash.