Four people including a police officer were killed in US State of Wisconsin on Wednesday after a domestic dispute escalated into shootings at three different locations, a bank, a law firm and an apartment complex, and a dramatic standoff between police and the suspect, officials said. The suspect is in custody, police said. 
Police responded to a "domestic situation" at Marathon Savings Bank in Rothschild. When they arrived, police discovered two people had been shot. The suspect was not there.
Police then received a call about 10 minutes later from the law firm Tlusty, Kennedy and Dirks in nearby Schofield, where the suspect killed one person. After one hour another person was killed at an apartment complex in Weston, where the suspect had barricaded himself in an apartment.
After a few hours of negotiations, there was an exchange of gunfire. The suspect was injured and transported to local hospital in an unknown condition.

Source: QNA