PC Blakelock curled up in a ball and screamed for help as a mob hacked him to death during the Broadwater Farm riots, an eyewitness has told the Old Bailey.
Using the pseudonym John Brown and with his voice distorted by a modulator to protect his identity, the witness described how he saw the killing on the estate in Tottenham, north London, on October 6 1985.
He explained that he had seen Nicky Jacobs, 45, stabbing PC Blakelock with a machete between two and four times as the frenzied mob took part in a "free for all".
More top news
Police are looking for a man who sexually assaulted a 12-year-old girl at a London train station yesterday while she was with her family.
A gang of robbers who dressed in burkas to stage raids on high-end stores in London have been convicted today.
The retrospective is so in-demand the museum will open its doors all through the night for the first time since it opened in 1857.