CANTON — A 14-year-old boy killed a teen girl execution style because he apparently believed a false rumor she was pregnant and thought he was the father, according to prosecutors. Isiah Lynch pleaded true — the juvenile equivalent of guilty —Wednesday to a murder charge for the March fatal shooting of 14-year-old Sylvia McGee. Lynch was 13 at the time of McGee’s death. Following a plea hearing in juvenile court, Assistant Prosecutor Michelle Cordova said Lynch told police he believed McGee was pregnant. “That is what I believe got this whole thing started,” she said, noting McGee was not his...