Mr Blake denied intending to kill the 24-year-old – who was not carrying a firearm – and told the trial he believed one of his colleagues could be killed by Mr Kaba’s car as he tried to get away from the police stop.
The victim of the Hackney nightclub shooting survived being shot in both legs. It was alleged that Kaba was the gunman.
Three other men have already been convicted over their involvement in that shooting and are currently in prison.
In April they were sentenced to 10 years, nine years, and five years and six months respectively.
Reporting restrictions also prevented the media from publishing details of Mr Kaba’s other criminal involvement – including previous convictions dating back to his early teen years.
Those include convictions for affray.
Mr Kaba, a construction worker who was due to become a father, had been followed by police on the day he was shot.
After being boxed in by police cars, he drove backwards and forwards trying to ram his way free – Mr Blake said this made him believe one of his colleagues would be killed, and he opened fire to stop the car, the jury heard.
Mr Kaba died from a single gunshot wound to the forehead.
