A California doctor was fatally beaten up in her home after she attempted to divorce her husband a second time, with police believing that her estranged husband attacked her as she tried to leave him. Yoon "Kevin" Lai has been arrested on charges of murder and arson in connection to his estranged wife Dr. Irene Gaw-Gonzalo's death. He pleaded not guilty on Tuesday, January 27, according to Patch. A judge ordered that Lai, 62, be held without bail until his next court appearance.