Her boyfriend Graham Grogan, 21, was jailed for life in Oct 2000.
The trial at Minshull Street Crown Court heard he smashed her head into a wardrobe, then stabbed her in the heart, back and lungs.
Charges were dropped against his brother Thomas Moore, 45.
The trial heard Ambrose stabbed her during a drunken row and then left, not realising she would bleed to death.
Dec 5 – Barry Wallace, 18, a Tesco shelf stacker, vanished on the way home from a nightclub in Kilmarnock. William Beggs, 36, was arrested in Holland on Dec 29 and was jailed for life (20 years) in Oct 2001. Dec 3 – Edmond Safra, 67, Jewish banking billionaire, and his nurse Vivian Torrente, died of smoke inhalation in the panic room of his penthouse in Monte Carlo. Ted Maher, 41, an American former Green beret, was jailed for 10 years for arson. Dec 1 – Mara Dorman, 40, a prostitute and crack addict from Belgravia, vanished in Dec 1999, stabbed and beaten and dumped in a black trunk by the side of the road at Hurstbourne Tarrant, near Andover, Hampshire on Jan 12, 2000 by a man with a metal detector.