Kieron Simpson jailed for prison killing of Robert Bryan

Kieron Simpson (pictured) pleaded guilty to the manslaughter of Robert Bryan

A man has been jailed for four years for killing an inmate with a single punch at a South Yorkshire prison.

Robert Bryan, 43, died in hospital after he was attacked by Kieron Simpson, 26, at HMP Doncaster on 27 February.

A post-mortem examination found the cause of death was a blow to the head.

Simpson, from Dodworth, was serving a sentence for burglary when he attacked Bryan. He admitted manslaughter at Sheffield Crown Court on 30 April.

Robert Bryan, 43, died in hospital after being attacked by Kieron Simpson

The court heard Bryan, who was serving a sentence for manslaughter, was knocked unconscious when he fell to the floor after being struck by Simpson. He died later the same day.

Det Sgt Andrew Knowles said: "This case clearly shows how dangerous and devastating just one punch can be.

"Simpson attacked Bryan for no apparent reason - he may not have intended to kill him but anyone who makes the decision to strike another with force must consider the potential shattering consequences a single punch can have."