A 27-year-old Polish man screamed at three men to stop as they attacked and killed him on his way to work in Dublin, the Central Criminal Court has heard.

Lukasz Rzeszutko was on his way to work at the Kish Fish factory in the Newtown Industrial Estate in Dublin in the early hours of 2 October 2010 when he was attacked and killed by three men.

Martin Morgan, 20, of Tonlegee Road in Coolock is facing life in prison after he was found guilty of the murder of Mr Rzeszutko.

His cousin Edward Byrne, 21, of Cabra Park, Cabra and Stephen Byrne, 19, of St Donagh's Road, Donaghmede have both already pleaded guilty to manslaughter.

The Central Criminal Court heard today that Byrne, who has no previous convictions, told gardaí they attacked Mr Rzeszutko "for a buzz".

The court heard the men came up with a plan to first ask him for a cigarette and then to "give him a few slaps".

The Polish man was found by his work colleagues and his boss at 4.30am with severe skull fractures and a brain injury. He died in hospital two days later.

Mr Rzeszutko was so badly beaten that he was initially unrecognisable to his work colleagues.

The court also heard that Byrne asked gardaí to arrest him because he did not want to be seen as a "rat".

He told gardaí "we shouldn't have done it 'cos the poor man was only going to work".

Morgan was 18 at the time he attacked Mr Rzeszutko. The court heard he lied to the gardaí, but blood stains were found on his runners.

Mr Rzeszutko was described as a model employee and he worked along with his two brothers at the Kish Fish factory.

In a victim impact statement read to the court, Mr Rzeszutko's mother Rusina said her son came to Ireland to improve his life and fulfil his dreams.

She said she could not understand what kind of human being Morgan must be to take her son's life in such a cruel way.

The three men will be sentenced by Mr Justice Barry White on Friday.