CINCINNATI -- Two days after the mass shooting at an East End nightclub, investigators haven't been able to talk to everyone involved.
Several remain hospitalized, which Lt. Col. Dave Bailey said limits police officers' access to them.
The Cincinnati Police Department is under "enormous" pressure to find the people responsible as soon as possible, Bailey said, working around the clock since early Sunday morning.
Still missing from the case? A motive.
Police believe several people fired shots -- at least 20 rounds -- inside Cameo Night Club at about 1:30 a.m. Sunday, Isaac said. O'Bryan Spikes, 27, died of a single gunshot wound to the chest. Other injuries ranged from minor to severe; five people were still hospitalized Tuesday, two of them in critical condition.
It was the largest mass shooting in the United States this year, according to data WCPO has reviewed.
Police Chief Eliot Isaac said Monday it was "probable" a gunman may be among the injured; Bailey said it's still too soon to know with certainty. Still, both men said they're not actively looking for suspects.
Despite a push to quickly identify and arrest the gunmen, it's also important investigators be thorough, Bailey said.
"We want them at the end of the day to say we've got the folks involved, we're right, we can go to court and we can make sure this is going to be a successful prosecution, and at least the folks responsible we can hold accountable," he said.
There is no security footage from inside the bar, Isaac told a City Council committee, so the police department is hoping to see cellphone video anyone might have captured.
"It's very important that we look at that (cellphone video), because some things we can find in the video would be very important to us that some folks might think it really doesn't matter," Bailey said. "So, if you have any of that, we need to take a look at that."
Police have said since Sunday that some kind of fight led to the shooting. But what exactly sparked that fight, Bailey said, still isn't clear.
"In the last 24 hours I've heard a number of different scenarios, but we're not sure. Altercation breaks out in a bar. Somehow or another, guns, shots are exchanged. We wind up with a bunch of victims. But, the exact motive yet, I don't think we know that now," he said.
Anyone with information can call Crime Stoppers at 513-352-3040. Callers can remain anonymous.
For WCPO's complete coverage on the Cameo nightclub shooting, visit wcpo.com/cameo.