The Court of Appeal has dismissed Christina Anderson’s appeal against the severity of her sentence for manslaughter on grounds of diminished responsibility. She was sentenced to 11 years’ imprisonment, with the final three years suspended for four years, after pleading guilty during her murder trial.
The court held that the sentencing judge had properly considered Anderson’s mental disorder when setting the sentence and had not erred in the reductions allowed for that condition or other mitigating factors. It also rejected her claim that the overall sentence was excessive.
Anderson’s trial for the murder of Gareth Kelly began on 1 December 2022. On 13 January 2023, she pleaded guilty to manslaughter on the grounds of diminished responsibility. The plea was accepted on the basis that, at the time of the killing, she was experiencing a psychotic episode resulting from a mental disorder. The sentencing judge set a notional headline sentence of 20 years, reduced it to 13 years to account for the disorder, then reduced it to 11 years for mitigation.
The Court of Appeal’s judgment recounts that Kelly was killed outside Anderson’s home in County Dublin on 25 February 2020. The judgment says CCTV showed Anderson stabbing him, returning to stab him again as he lay on the ground, and then going back into her home. Anderson and Kelly did not know each other; he had parked in one of two spaces assigned to her house while staying with his partner and their children nearby.
On appeal, Anderson argued that the seven-year reduction for her mental disorder did not adequately reflect its severity or its effect on her moral responsibility. She also said the sentencing judge should have allowed a greater reduction for mitigation, including her guilty plea and personal circumstances, or suspended more of the sentence. The Director of Public Prosecutions opposed the appeal, arguing that the sentencing judge had followed the applicable approach and appropriately assessed the evidence.
The appeal court found that the sentencing judge had considered psychiatric evidence and accounts from people who knew Anderson, and had assessed how far her offending was attributable to her mental disorder. It concluded that the 20-to-13-year reduction was substantial and properly reflected the disorder while leaving a degree of blameworthiness. The court also said the plea, entered after extensive evidence at trial and following an amended indictment, did not have the attributes of a signed guilty plea.
The court noted that the judge could have structured the sentence differently, but found the choices about mitigation and suspension fell within her discretion. The appeal was dismissed.