Gardaí investigating the death of Joseph Deacy in Swinford Co Mayo in August last year have arrested a man.
Joseph, originally from St Albans in England, was discovered outside a house at Gortnasillagh, Swinford with apparent head injuries.
He was taken to Mayo University Hospital, before being moved to Beaumont Hospital in Dublin where he died the following day.
A post-mortem examination on the body of the 21-year-old led gardaí to treat the death as a homicide.
The suspect, who's in his 20s, was arrested this morning.
He is being held at Claremorris Garda Station under Section 4 of the Criminal Justice Act.
