Reading - A Royal Protection Squad policeman was last night beginning a life sentence for the "callous" and "coldhearted" murder of his wife.
Michael Coulton plotted the brutal killing of Mrs Patricia Coulton, a mother of two, as he guarded the gates at Buckingham Palace. Reading Crown Court heard how he pounced on her, stabbing her 15 times and beating her to death just hours after coming off duty from guarding the queen.