Original sentence: In 1947,  at age 18 he joined the RAF but was dishonorably discharged in 1949 for desertion serving for only two years.On 4 July 4 2007, Biggs was moved from Belmarsh prison to Norwich prison on compassionate grounds.On August 6 2009, it was announced that Biggs would be released from prison on "compassionate grounds".Ronald Arthur "Ronnie" Biggs (born August 8, 1929) is a convicted English criminal noted from his role in the Great Train Robbery of 1963, his subsequent escape from prison and for being on the run for many years.Together with other gang members, he stole £2.6 million from a mail train
Edited sentence: In 1947, at age 18 he joined the RAF but was dishonorably discharged in 1949 for desertion, serving for only two years.On 4 July 2007, Biggs was moved from Belmarsh prison to Norwich prison on compassionate grounds.On 6 August 2009, it was announced that Biggs would be released from prison on "compassionate grounds".Ronald Arthur "Ronnie" Biggs (born 8 August, 1929) is a convicted English criminal noted from his role in the Great Train Robbery of 1963, his subsequent escape from prison and for being on the run for many years.Together with other gang members, he stole £2.6 million from a mail train on 8 August 1963 (his 34th birthday)