A man shot and killed his girlfriend and another person Friday in a suburban Milwaukee hotel, then sprayed a hallway with bullets, wounding two others, authorities said.
The gunman, who was wearing body armor and had a fully automatic weapon and a handgun, then took another hotel guest hostage before releasing him unharmed a half-hour later, police said. The suspect, whose name was not released, was then arrested.
The gunman fired 30 to 40 rounds during the rampage, police said.
Investigators believe the shooting started in the middle of the night after the gunman had a fight with his girlfriend in their room at the Comfort Suites and she called relatives to pick her up.
The man killed his girlfriend, then shot to death a hotel guest who stepped into the hallway after hearing the noise, police said.