On 15 July 1992, 23-year-old model and mother Rachel Nickell was raped and murdered in broad daylight while walking her toddler son and dog on Wimbledon Common in south-west London. The attack, carried out just a short distance from the All England Lawn Tennis and Croquet Club, sent shockwaves through Britain and triggered one of the Metropolitan Police's most controversial and protracted murder investigations.
More than 16 years later, her killer, Robert Napper, would finally be brought to justice after advances in DNA evidence linked him to the crime.