“I am satisfied that your decision to kill her had nothing to do with any of the challenges that you have faced in your life as a result of the abuse you received as a child. Nor had your decision anything to do with any of your behavioural traits... I have given the significance of your mental health careful thought. Having done that, I consider that the seriousness of your offence is not mitigated by the presence of certain mental health issues in your life, and certainly those matters in my judgment do not reduce the seriousness of your offence.”