In the pilot episode, a psychotic gunman went on a shooting rampage outside the police station, killing a number of policemen and innocent bystanders. He was wounded in the shootout and brought back into the station where he died from his gunshot wounds. It was later revealed that Ann-Marie Kersey (Yancy Butler), a policewoman whose boyfriend was one of the victims of the shooting spree, slipped into the room where the wounded madman was being held and kicked him several times in his chest which caused his death. Because the shooter was black and all of his victims were white, the killer's family pressured the city to launch an Internal Affairs investigation. Eventually, everyone was exonerated for the suspect's death, and Kersey completely got away with it, though her guilt over murdering a critically wounded criminal would haunt her off-and-on for the duration of the series. Kersey then had a romantic affair with Donovan, but it did not last. Kersey and Donovan later got back together. Later in the series, Kersey was designated to detective.