A 20-year-old from Plumtead has been telling London Tonight how he's used the devastating murder of his best friend to turn his own life around.
Rather than be involved in crime, Timi Jogunosimi is ploughing most of his time into a football project, which is helping other vulnerable young people in South London.
Watch Jamie Shepherd's report:
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A guarantee from City Hall to bankroll the annual £2-3m bill was a key planning condition imposed by Westminster and Lambeth councils.
Detectives in Westminster are investigating after the man was discovered on the Route 189 bus in Marylebone shortly after midnight.
The plaque at number 16 Cowley Street in Westminster marks the brown brick Georgian townhouse where Sir John lived for 31 years.