Investigators estimated 200 people were inside Cameo at the time of the shooting. People rushed out of the crowded nightclub to escape bullets. One woman dove on the ground outside the club.
Investigators believe there were multiple shooters, and no arrests have been made.
Cranley stressed the importance of the community stepping up to contribute to the investigation.
“We need witnesses to come forward. We need people to have the courage to point to these shooters, and we need to bring these shooters to justice,” Cranley said. “What happened is totally awful, a heinous crime. People should not be victimized by gun violence when they go out to have a good time.”
At a meeting of City Council's Law and Public Safety Committee, Councilman Kevin Flynn promised anyone with information would be protected. The city has a program called Cincinnati Citizens Respect Our Witnesses, or CCROW, that advocates for and supports witnesses of crimes.
"This is a program that is very innovative at the local level, and just know that if you're out there and have information, that police will protect you," Flynn said.
Four off-duty officers were working a private security detail outside the club. Sgt. Dan Hils, president of Cincinnati's police union, said what they and other officers encountered when they rushed inside may have left them disturbed.