A suspect shot and seriously wounded a Milwaukee police officer sitting in his squad car before fleeing and apparently killing himself shortly afterwards.
Sgt Tim Gauerke said officers responded to several calls in the 3500 block of South 17th street early on Sunday, including two domestic violence-related calls in which the suspect was no longer there when the officers arrived.
He said that at around 2am, an officer was sitting in his car conducting the investigation when a suspect approached on foot and fired at the officer, striking him several times.
About 30 minutes later, officers heard a nearby gunshot and found a man who had apparently shot himself in the head, killing himself.
Sgt Gauerke said investigators believe the dead man was the suspect in the domestic violence incidents and the person who shot the 31-year-old officer.
The officer was hospitalised with serious wounds that were not considered life-threatening.
Sgt Gauerke said the man was 20-years-old, from the suburb of West Allis and had two felonies on his arrest record.