Murder of Alison Shaughnessy
On 3 June 1991, 21-year-old Alison Shaughnessy (née Blackmore; born 7 November 1969) was stabbed to death in the stairwell of her flat near Clapham Junction station. Shaughnessy was newly married, but her husband was having an affair with a 20-year-old woman, Michelle Taylor.
Source: Wikipedia — Murder of Alison Shaughnessy (CC BY-SA 4.0)