The jurors, who are trying a man accused of murdering Harry Potter actor Rob Knox, are expected to retire to consider their verdicts.
Knox had allegedly been stabbed five times by Karl Bishop, 21, outside the Metro bar in Sidcup, south east London, in May last year, reports the Daily Express.
According to prosecutors, Bishop had killed 18-year-old Knox and lashed out at five other youths in an act of revenge.
But Bishop, of Beaver Lodge, Carlton Road, Sidcup, claims that he was under attack and was protecting himself
He denies murder and five charges of wounding with intent to cause grievous bodily harm at the Old Bailey.