"The perpetrator had an appointment today, along with many of the victims, to discuss future custody arrangements for his three-month-old daughter," said Kathrin Schuol, the police chief for Lueneburg, which is leading the investigation."Both the child and her mother were present at the location but were not injured by gunfire."Emergency workers rushing to the scene of the shooting found four people already dead. A fifth person died soon after at the scene, while a sixth later succumbed to their injuries.Schoul said the victims -- four women and two men -- were all child welfare workers, and had all been shot "in a brutal manner".A seventh person was wounded and reported in a stable condition.The suspected gunman tried to flee in a car driven by a 55-year-old woman -- believed to have "a close connection to the gunman's family" -- but was captured after a short chase, Schuol said.Police had opened fire on the car but neither the suspected gunman nor the driver were hurt, Schuol said. Both are being held in police custody.No firearm licenseThe suspect was previously known to police, including for making threats, but "he has not previously been regarded as a particularly violent individual," Schuol said.She added that the suspect did not have a firearms license and it remains unclear how he obtained the weapon.