Lewis Gill: Bournemouth death punch sentence reviewed Published duration 26 February 2014

image copyright Dorset police image caption Lewis Gill was jailed at Salisbury Crown Court on Friday

The attorney general is considering whether the four-year sentence given to a man who killed another man with a single punch is too lenient.

Andrew Young, 40, suffered a head injury and died in hospital after the assault in Bournemouth in 2013.

Lewis Gill, of Sutton, south London, admitted manslaughter and was jailed at Salisbury Crown Court on Friday.

Justice Secretary Chris Grayling said the attorney general was considering seeking a longer sentence.

He called it a "repugnant crime", adding: "I think most of the public will feel justice hasn't been done."

"In a case where [the attorney general] judges the sentence to be too lenient, he can go back to the courts and seek a longer sentence," Mr Grayling said.

"He may choose to do this in that case."

Dorset Police described the killing outside a Tesco Express store in Charminster Road as a "violent attack on an innocent man".

CCTV showed Mr Young, who had Asperger's syndrome - a form of autism - apparently challenging Gill's friend, who was cycling on the pavement.

image copyright Dorset Police image caption Mr Young spoke with Gill's friend, who was on a bicycle

Moments later, Gill, 20, who was walking along behind, was shown punching Mr Young in the face.

Mr Young fell backwards and hit his head on the ground.

image copyright Dorset Police image caption Andrew Young died after being punched by Lewis Gill

Conservative MP David Davies told the Daily Mail it was an "outrageously lean sentence".

media caption Chris Grayling says the sentence of a man who admitted manslaughter after a punch in the street is being reviewed

"In two years he will be out walking the streets after taking somebody's life," he said.

"He has attacked someone unprovoked and should be properly punished.

"People need to realise if you punch someone like that, and they fall backward, they can die."