WOODBURY - Authorities in Springfield, Mass. say a police officer responding to a domestic call has been fatally shot by a Long Island man who critically wounded a woman before taking his own life. Police say they received a 911 call from Charlene Mitchell, the estranged girlfriend of 35-year-old Shawn Bryan, a New York City corrections officer from Hempstead. She indicated that she feared for her life, prompting officer Kevin Ambrose to respond to the scene. Investigators say Ambrose then escorted the pair to Mitchell's apartment, where Bryan fired twice at the officer and once at Mitchell. They say he proceeded to shoot himself in his car. Ambrose, a 36-year veteran, is the first Springfield officer killed on duty in nearly 27 years. Mitchell has been hospitalized in critical condition. AP wire services contributed to this report.