'You are irreplaceable'. The words of the widow of a volunteer firefighter, who lost his life trying to help others as Cyclone Gabrielle was bearing down. Dave van Zwanenberg was found dead after a landslide came down on the home he was helping people evacuate from, in Muriwai, on Auckland's west coast. Today, hundreds of family and friends paid tribute to the veterinarian, husband, father and friend. Our reporter Finn Blackwell and camera operator Marika Khabazi were there.