50 years ago - 1966 August 12 - Harry Roberts, John Duddy and John Witney, members a car theft ring, are pulled over by British policemen Christopher Head, David Wombwell and Geoffrey Fox. Roberts and Duddy then gun down all three officers. The criminals were all eventually captured, convicted of the murders and given long prison terms. Duddy died incarcerated in 1981 while Witney was released in 1991 then beaten to death by his flatmate in 1999. Roberts, the sole survivor, was finally paroled in 2014.