A pair of workmates who fatally attacked a homeless man after finishing their shifts at Harrods are due to be sentenced.

Agency workers Lucas Antunes and Luis Abella had finished shifts at the prestigious department store when they set upon 51-year-old Desmond O'Beirne at about midnight on 3 June, 2017, Trafalgar Square.

London's Old Bailey heard Mr O’Beirne initially threatened to “shank” the pair after he asked for a cigarette and they said they had none.

But the victim was seen in CCTV footage to be walking away when Antunes, 22, punched him in the head, sending him to the ground. Abella, also 22, appeared to land a flying kick.

Mr O’Beirne never recovered consciousness and died from a brain injury on 20 December, 2017.

In pictures: Manslaughter trial into Louella Michie's death Show all 6 1 /6 In pictures: Manslaughter trial into Louella Michie's death In pictures: Manslaughter trial into Louella Michie's death Ceon Broughton leaves Poole Magistrates' Court on 23 March, 2018. PA Archive/PA Images In pictures: Manslaughter trial into Louella Michie's death Family picture of Louella Fletcher-Michie, the daughter of Holby City actor John Michie, who was found dead after taking a party drug at Bestival on 11 September, 2017. Zoe Barling In pictures: Manslaughter trial into Louella Michie's death Louella Fletcher-Michie and Ceon Broughton were said to have been in an on-off relationship for a number of years. Instagram In pictures: Manslaughter trial into Louella Michie's death Ceon Broughton in the music video for his track 'Duracell'. CEONRPG In pictures: Manslaughter trial into Louella Michie's death John Michie attends the Inside Soap Awards, at Ministry Of Sound, in London, 21 October, 2013. Getty Images/Gareth Cattermole In pictures: Manslaughter trial into Louella Michie's death Ceon Broughton, 29, arrives at Winchester Crown Court on 4 February, 2019, where he is charged in connection with the death of Holby City actor John Michie's daughter Louella Fletcher-Michie. PA

Last year, police offered £20,000 to anyone who could help track down the culprits.

Following the appeal, Antunes, of Tottenham, north London, was tracked down by authorities in the United States and returned to face justice in Britain.

He pleaded guilty to manslaughter while Abella, from Lambeth, south London, admitted attempted assault occasioning actual bodily harm.

Desmond O'Beirne, 51, was fatally attacked by two men in Trafalgar Square on 3 June, 2017. He never regained consciousness and later died from a brain injury on 20 December, 2017. (Metropolitan Police)

He had originally faced a manslaughter charge but it changed to the lesser charge following a review.

Mr O'Beirne who was originally from Ireland, was said to have had an itinerant lifestyle. His sister Vivienne Folan lived in Wales.

In April, Ms Folan said: 'My brother Desmond was hard-working and larger than life. He was on a night out in Trafalgar Square when he was brutally and viciously attacked by two cowards who then calmly walked away and left him for dead."

The defendants will be sentenced by Judge Paul Dodgson at the Old Bailey.

A Harrods spokesman said the defendants were not members of staff but were employed by Buzz Retail, which provides workers for demonstrations within the store.

Both worked there for less than a year, in 2017.