Eighteen year-old Michael Page was stabbed to death as he walked home from a party on 4 June 1978.
Michael, a clerk at Natwest bank in Elephant and Castle, had been out with friends at a dance in Crofton Hall, Orpington.
He was spotted lying on the pavement just a few hundred yards from his home in Avalon Road by a passing motorist at around 3.42am.
Newspaper reports stated he had suffered six deep stab wounds. His plastic wallet containing his driving licence, £50 cheque card and railway season ticket was missing, along with less than £3 in change.
The case was investigated by Detective Chief Inspector David Gerring, who was involved in the hunt for Lord Lucan, and remains unsolved.