Police have been questioning clubbers over the murder of an 18-year-old model, one week after the attack.
Sally Anne Bowman worked as a model
Sally Anne Bowman had been on a night out in Croydon hours before being stabbed to death yards from her home in the early hours of Sunday 25 September.
On Saturday night Miss Bowman's mother and sisters helped officers hand out leaflets in pubs and clubs to find out information about her last movements.
Her purse, Prada handbag, mobile phone and passport are still missing.
Detectives have also revealed that a white crochet bolero style cardigan Miss Bowman had been wearing earlier that night was not on her when she was found.
Det Ch Insp Stuart Cundy, of the Metropolitan Police, said: "I would urge anyone who knows the whereabouts of this cardigan to please contact me.
"It is important that I find Sally Anne's cardigan as it could be a significant piece of evidence."
Police officers and the family returned to the scene of the crime in the early hours of Sunday morning to make an appeal for further information.
In a statement Linda Bowman said her daughter was the "most caring young lady you could ever wish to meet".
She said: "Sally was noticed wherever she went, heads would turn, she knew it and enjoyed every minute. She was always glamorous even when just going shopping in Asda.
"She also did mine and her sister's hair because she always said we had to look good, because she would get more hairdressing clients.
Police questioned clubbers in Croydon
"I only wish she made her front cover of Vogue, and if this could be made possible now this means all her dreams would become true. At least her murderer could not take that from her."
It has also been suggested the man who murdered Miss Bowman may also have attacked another woman an hour before.
A 36-year-old woman was hit on the head with a metal object less than 500 metres away and her bag was stolen.
She suffered injuries to her head, back, arms and hands.
Warning to women
The victim believes the robber, who was white and aged in his 20s, had a knife in his waistband.
He was about 5ft 10in to 6ft, slim to medium build, with short brown hair, and wore a long sleeved jumper and trousers.
Forensic evidence has also linked the fatal stabbing of Miss Bowman to a sex attack in Purley in 2001.
Miss Bowman had been out for a night in Croydon the night she was killed.
She had gone back to a friend's house then back into town before meeting her ex-boyfriend who dropped her off near her home in Blenheim Crescent.
Police are appealing for anyone who has been sexually assaulted in the area to come forward and have asked women to remain vigilant.