City of Louisville Greg Fischer says the two police officers who fired the shots had not activated their body cameras at the time, reports CBS News.
"This kind of institutional failure will not be tolerated," he says.
The victim, a restaurant owner named David McAtee, attended a demonstration on Sunday night to mark the death of Breonna Taylor, a 26-year-old African-American woman who was shot dead by police in Louisville in March.
According to the local police, shots were fired at a police force before they opened fire themselves.Curfew in New York
The major protests against racism and police violence that rage in the United States started after the notable arrest of George Floyd in Minneapolis last week, and have spread to at least 140 cities.
Several cities have announced curfews because of the violent protests.
On Monday, the news came that New York Governor Andrew Cuomo is also announcing a curfew in the city between eleven o'clock in the evening and five in the morning.