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Three people have been killed and four others wounded by a gunman who opened fire in a spa in the midwestern U.S. state of Wisconsin.
Police said the suspect, 45-year-old Radcliffe Haughton, was found dead of a self-inflicted gunshot wound at the scene.
Authorities also found an improvised explosive device inside the Azana Salon and Spa in Brookfield, a suburb of Milwaukee.
Police believe the shooting was related to a domestic dispute, but gave no other details.