Police allege a 74-year-old engineer murdered his wife at their home in the Sydney suburb of Bronte. (Bianca De Marchi/AAP PHOTOS) Police allege a 74-year-old engineer murdered his wife at their home in the Sydney suburb of Bronte. (Bianca De Marchi/AAP PHOTOS) A well-to-do civil engineer from Sydney's eastern suburbs allegedly gave police a detailed account of killing his wife as they arrested -- The property in the beachside suburb remained cordoned off the morning after the death, with numerous detectives and uniformed officers at the