IN a chilling revelation at Nottingham Crown Court, the case of former Haverfordwest resident, Valdo Calocane, 32, unveils a tragic narrative of mental illness and missed warning signs. Calocane, suffering from paranoid schizophrenia, believed he was under the control of MI5 and other malign forces, a delusion that led to a horrific series of events in Nottingham on 13 June last year.

Calocane, who has admitted to the manslaughter of Grace O’Malley-Kumar, Barnaby Webber, and Ian Coates on the grounds of diminished responsibility, also attempted to kill three others during his rampage. His defence, led by Peter Joyce KC, highlighted Calocane’s troubled past and his attempts to seek help, including a desperate plea at Thames House, MI5’s headquarters, in May 2021.

Forensic psychiatrist Dr Nigel Blackwood detailed Calocane’s history of psychotic delusions. In one instance, Calocane broke into a flat, believing his family was in danger, causing one occupant to leap from an upstairs window in terror. On another occasion, he drove hundreds of miles to his family home, consumed by the belief they were at risk, yet fearing MI5’s surveillance, he refused to enter.

Despite treatment by mental health services since 2020, Calocane often resisted medication, misled clinicians about his symptoms, and disengaged from mental health practitioners. Dr Blackwood remarked on his intelligence and ability to conceal his illness, a factor that perhaps contributed to the tragedy’s escalation.

Adding to the complexity of the case, it has emerged that an arrest warrant was out for Calocane since September 2022, following an alleged assault on a police officer. This warrant remained active at the time of the June attacks. Assistant Chief Constable Rob Griffin of Nottinghamshire Police has acknowledged shortcomings in their efforts to apprehend Calocane, though he noted the unlikelihood of Calocane receiving a custodial sentence for the assault.

Psychiatrists have warned of Calocane’s treatment-resistant schizophrenia, posing a deadly risk if he were to refuse medication in prison. “There is a significant risk of lethal behaviours returning,” Dr Blackwood cautioned, stressing the lack of insight Calocane has into his illness and the moral and legal wrongness of his actions.

His difficulties in Nottingham were a far cry from his upbringing in Haverfordwest.

He moved to Pembrokeshire’s county town with his parents from the West African country of Guinea-Bissau, where he was born in September 1991. Neighbours described him as a polite churchgoer from a good family who would always say hello to them.

He attended the Calvary Church along with his carer dad Amissao, 56, nurse mum Celeste, 44, and two younger siblings. Neighbour Marlene Raymond, 55, previously said: “I can picture the eldest boy now in his school uniform, he was very smart and handsome.

“He was very bright, all three children are – they are a nice family and have been lovely neighbours for years. I haven’t seen the oldest boy for some time – since he went away to college or uni. They are very clever, all of them are polite and intelligent children.”

The family worship at the Calvary Church in Haverfordwest which is less than a quarter of a mile from their home. Calocane’s guilty pleas to the manslaughter of Grace, Barnaby and school caretaker Ian Coates were accepted by prosecutors today.

As Calocane awaits sentencing this week, this case serves as a stark reminder of the intersections of mental health, criminal justice, and societal responsibility. It raises crucial questions about how individuals with severe mental illnesses are managed and monitored, especially when they show violent tendencies or seek help in unconventional ways.