A man has admitted killing a cyclist and burying his body on a country estate with help from his twin brother.

His remains were discovered in January 2021 within a remote area of ground by the A82 near to a farm in Bridge of Orchy, Argyll and Bute.

Twin brothers Alexander and Robert McKellar, 31, were initially accused of murdering Mr Parsons and attempting to defeat the ends of justice.

The siblings denied murder and were due to stand trial this week at the High Court in Glasgow.

On Wednesday, advocate depute Alex Prentice KC announced the charges against the brothers had been amended with Alexander then pleading guilty to the lesser charge of culpable homicide.

He admitted hitting Mr Parsons, from Tillicoultry in Clackmannanshire, with a vehicle while driving at excess speed and unfit through alcohol on 29 September 2017.

Robert, who was a passenger in the motor, was acquitted of killing Mr Parsons after his not guilty plea was accepted by the Crown.

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Both brothers pleaded guilty to attempting to defeat the ends of justice.

The pair admitted leaving the scene of the collision and returning in another vehicle.

The brothers then took Mr Parsons' body, bike and belongings to Auch Estate, where they buried the ex-navy petty officer within the grounds at a location used to dispose of dead animals.

The brothers also arranged for repairs to be carried out on the vehicle that struck Mr Parsons, pretending that the damage was caused by a collision with a deer.