David Alderson , 72 , was found dead in a Kevern copper mine last January . Police thought he had died in a cycling accident but Kevin Cooper and Trewen Kevern and now accused of murdering him . Court hears they lured victim to mine by offering to sell him illegal guns . Defendants 'beat pensioner around head and left him face down in pond '
David Alderson , 72 , was found dead in a Cornish copper mine last January . Police thought he had died in a cycling accident but Kevin Cooper and Trewen Kevern and now accused of murdering him . Court hears they lured victim to mine by offering to sell him illegal guns . Defendants 'beat pensioner around head and left him face down in pond '