"I was hurt that my daughter would go to the court, would have me charged with assault.
"I'd never been involved with the police, never been in trouble."
In his biography, Mr Nikau spoke about the 2001 suicide of his first wife, Letitia.
"Heaven-Leigh had been through everything with me. She was my rock."
Asked how that close relationship had deteriorated, he said: "Obviously she had some issues losing her mum ... I probably spoiled her because her mum had died. I overcompensated, I tried to give her everything.
"Parenting, mate, that's the hardest job in the world. It's a tough job and a lot of our people out there need help."