Six seconds. Enough time, a jury was told, to illustrate how fragile life is but also how ferocious Kyle Zandipour's attack on Joshua Hardy really was.

In those seconds shortly after 1.10am on October 18, 2014, Zandipour took Mr Hardy - a man about 20 centimetres taller and 20 kilograms heavier - by the arm and flung him to the ground, kicked him three times to the head and neck and stomped on him.

Mr Hardy, 21, suffered a severe brain injury and died an hour later in hospital. He was remembered as a man who was full of promise who had travelled from Darwin to study law.

On Monday Zandipour, 29, was found guilty of murder by a Supreme Court jury that had deliberated for two days. A first jury had in February failed to reach a verdict after a week of deliberations.