A key witness in the Portuguese trial of two men accused of murdering a Londonderry man has admitted lying.
Paul Houston, a 51-year-old father-of-four, was found dead at Alvor, in the Algarve region, last September.
Jones Dos Santos, 27, and Diago Dias, 20, claim they acted in self-defence during a fight. They say he was sitting up when they left him.
A friend of the men now says Mr Dos Santos told him on the night: "Let's leave because I just killed someone."
Ebert Sergio said Mr Dos Santos was sober and knew exactly what he was doing.
The witness said he was now telling the truth because he felt guilty.
The trial has been adjourned until 7 June.
Mr Houston, who owned Houston Shoes on the Strand Road in Derry, was on a family holiday when he was attacked.
He had lived in Donegal and was president of Greencastle Golf Club.