article_snippet: Roberts, Duddy and Witney were sitting in a van near Wormwood Scrubs prison on August 12, 1966, planning an armed robbery with a Luger pistol.
article_snippet: Roberts, Duddy and Witney were approached by the three plain clothes unarmed police officers who had suspected there had been a jail escape.
article_snippet: Duddy died in Parkhurst prison in 1981 and Witney was released in 1991 but was beaten to death with a hammer by Roberts flatmate in Bristol in 1999.
article_snippet: Roberts had been sitting with Roberts accomplices Duddy and John Witney in a van near Wormwood Scrubs prison in West London.
article_snippet: his accomplices John Duddy and John Witney had been preparing for an armed robbery when his accomplices John Duddy and John Witney were approached by the officers and Roberts opened fire with a Luger pistol on the three unarmed officers.
article_snippet: his accomplices John Duddy and John Witney were caught but Roberts, then 30, remained on the run for 96 days relying on Roberts training as a soldier to survive.