Police sources say that the woman found dead in her West 22nd Street apartment was killed by her boyfriend after she broke up with him. The Post reports that 26-year-old Margaux Powers (pictured, with her father) had "canceled plans to attend a family gathering Thursday" so she could break up with Jonathan Smith, 34. Powers and Smith, a chef who had been recently laid off, lived together in the Chelsea apartment. Police believe Smith slit......

A 26-year-old woman was found murdered in her Chelsea apartment by her sister last night, and the murder victim's boyfriend--and the murder suspect, according to police-- killed himself a few hours after the discovery. Margaux Powers's family had been worried they didn't hear from her for a few days, so her sister Dana went to Margaux's apartment at 235 West 22nd Street on Friday night. Doorman Constantine Ionescu accompanied Dana to the apartment, and......