The best friend of a man accused of murder said he saw him "go mad" and stab the 37-year-old victim "for nothing", the Central Criminal Court heard.

The former girlfriend of a Dublin man accused of murder has told a jury that she saw him stab the victim on Easter Sunday morning two years ago in a Wexford caravan park.

A 24-year-old Dublin man has gone on trial for the murder of a Wexford man in a Rosslare caravan park on Easter Sunday morning two years ago.