The adultery of his ex-wife Ina Bonnette was treasonous, the so-called "Modimolle monster" Johan Kotze told the High Court in Pretoria on Thursday.

"I do not get renounced like that. It was treason against me," Kotze said.

He was responding to a question by prosecutor Retha Meintjes.

She asked about his emotions on the night he found out about his then wife's infidelity. He went to a dance on New Year's Eve 2011...read more here: Adultery of ex-wife was treason: Kotze