John Bass, of Arundel Green, was yesterday charged with murdering Mark Austin, who died after being assaulted earlier this year.
Mr Austin was seriously injured during an attack in the Harcourt Green area shortly before 1am on January 31.
He died from his injuries at Stoke Mandeville Hospital the next day.
Mr Bass, 49, was arrested shortly after the incident and sectioned under the Mental Health Act.
Police have now charged him with murder and he is due to appear at Aylesbury Magistrates’ Court today.