Trevor Gocan, 57, repeatedly punched and kicked 74-year-old James O'Neill to leave him bleeding on the ground outside his flat in Covent Garden, central London .

Mr O’Neill’s widow, Sara, said she had been left ‘completely devastated’ and haunted by nightmares

Trevor Gocan, 57, repeatedly punched and kicked 74-year-old James O'Neill to leave him bleeding on the ground outside his flat in Covent Garden, central London .

Former postman jailed for 12 years after 90-second attack caused death of James O’Neill, 74