FITCHBURG, Wis. -- Fitchburg police said a man has been arrested in connection with a fatal shooting Tuesday night after calling 911 and claiming to be the shooter.

Police said Perry Lucas, 28, of Fitchburg, is tentatively charged with first-degree intentional homicide.

The shooting occurred at an apartment building in the 3300 block of Leopold Way, just before midnight, police said.

Police said a disturbance took place inside the apartment building, and Lucas, a resident there, pulled out a gun and shot two men multiple times in the building's hallway.

One of the victims, Detarius Martin, 23, of Madison, was pronounced dead at a hospital.

The Dane County Coroner's Office said preliminary autopsy findings indicate that Martin died as a result of multiple gunshot wounds.

His brother, a 27-year-old, is hospitalized with non-life-threatening injuries.

Police said even though the person who they believe pulled the trigger is in custody, the incident is still concerning.

“You have three people who basically meet for the first time last evening and some sort of altercation breaks out and shots get fired, and one of the three people is dead. That's a concern. It's a tragedy, quiet honestly," said Lt. Chad Brecklin, of the Fitchburg Police Department.

An exact motive is still not known, but police said they do not believe drugs or gang involvement played a role in the shooting.

The Fitchburg Police Department said that officers do respond to that particular area for disturbance calls regularly, but they do not consider it a troubled area.