I read that Hune's son was none too impressed that his mother had taken the rap, and had exchanged a series of texts with his father. that made it clear that the points swap had taken place and that Hune had been lying. Hune's son had threatened to reveal them to the court if he didn't own up.
Hune's lawyers had tried to get the texts rejected as inadmissable evidence but failed - after which he changed his plea to guilty.