The court heard that all of them had been drinking at a house party the night before.
After the attack they returned to the house party.
It was then alleged that they took off their blood stained clothes, and another friend Artur Woszcxyna, then drove to St Bees and threw a bag with the clothes and shoes over a cliff.
Another man, Artur Skoczen is also accused of helping cover up the murder.
All the defendants deny the charges.
The trial is expected to take up to six weeks.
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A look ahead at the forecast for the Border region
A selection of some of the best sunrise pictures from across the region, sent in by ITV Border viewers.
Chilly start. Some frost in places, icy patches possible too. Cloud and sunny spells today, hazier in the west later