23 year old Shane Canavan and his half-brother Joshua Langley, 28, carried out the attack over a fight that had taken place days before.
The pair were found guilty of the murder of 20-year-old Bradley Hutchins and wounding with intent of a 19-year-old man.
Canavan was also found guilty of possession of a pointed or bladed article while Langley previously pleaded guilty to the same offence.
