Complex sentence: Mackay and Turinui attended St Anthony's in Clovelly and Waverley College together, and Mackay was the best man at Turinui's wedding and godfather to his son Felix.
Split into simpler sentences: Mackay and Turinui attended St Anthony's in Clovelly and Waverley College together. He was the best man at Turinui's wedding and godfather to his son Felix.