A Soufriere man succumbed Thursday night, after being struck on the head with a piece of stick on Christmas Day.
The man had been in an unresponsive state in hospital since the incident.
Law enforcement officials have identified the deceased as Randy Augustine of Fond St Jacques, Soufriere.
Augustine, 30, is reported to have been hit around 9. pm. at Bois Den, Fond St Jacques, during an altercation at a family gathering.
A nineteen year old resident of Delcer, Choiseul is currently in police custody, a law enforcement source has disclosed .
According to information obtained by St Lucia Times, the accused sustained injuries to the face.
Saint Lucia has recorded 57 homicides for the year so far.