Pay attention to the two people in this footage. This is 19-year-old Barnaby Weber and 19-year-old Grace Ali, and they are on their way back to their college dorm. But unfortunately, they will never make it back. Minutes earlier, the two had been partying at the Prism nightclub, where they celebrated the end of their exams before deciding to walk back to their college residence. They had already made it to Ilkiston Road just blocks from their destination when a figure dressed in [music] black is seen on another street. He has just seen them and the students are walking directly into his trap. >> Emergency. What's the emergency? >> Yes, there's been a stabbing on road. There's somebody [music] lying in the street. I think they're dead. >> Oh, that was awful. >> Where about Milton Road, please? >> Outside the World Bomb building uh near the crossroads. The same man is then seen walking calmly away from the street where [music] he had just committed the murders. But he was just getting started. University of Nottingham, a place of academic pursuit and home to over 34,000 students. It was in this environment that 19-year-old Grace Omalikumar and 19-year-old Barnaby Weber began their adult lives. Grace was a firstear medical student. She was inspired by her parents, both doctors, to pursue a life of service. Her dedication was matched by her athletic talent. She was an elite level hockey player who had competed for England's under 18 national squad and was a key member of the university's own team. On the other hand, Barnaby was a firstear history student from Taton. He was known for his passion for cricket and had been selected for the university's team. The two friends had met and formed a bond during their first year of university life. And on the night of the attack, they were celebrating the end of their exams. They had successfully completed their first year and were just a short walk from their dorms. This university was also the former home of their attacker. The figure in black was 31-year-old Valdo Calakane. He was not an outsider. He was an alumnist, having graduated from the very same institution with a degree in mechanical engineering. But in the years since his graduation, Valdo's life had followed a different path. He was now a man known to police and mental health services. And on this night, he had returned to the streets of his former university city with an evil plan in mind. On June 12th, 2023, hours before the murders, Valdo, who was now unemployed and homeless, was in London for a brief visit. That evening, he decided to travel from London to Nottingham by train. Carrying a rucks sack with three knives, a double-edged dagger, and a scaffolding pole. CCTV cameras from multiple locations tracked his journey through the city streets. He was a man who had successfully evaded authorities for months. Despite a diagnosis of paranoid schizophrenia, he was not receiving treatment. He had a warrant out for his arrest for assaulting a police officer, but it was never executed. He was in effect a ghost in the system. During these hours of walking, he was in the grip of a severe psychotic episode. Later psychiatric reports would state he was tormented by auditory hallucinations, voices he believed were threatening and controlling him. He held a deep-seated paranoid delusion that he was being spied on by intelligence agencies. At one point during his journey through the city, he made a final chilling phone call to his brother. He stated, "This will be the last time I will talk to you. Take the family out of the country." When his brother asked if he was going to do something stupid, Valdo's reply was clear and final. It's already done. His walk was not aimless. He was hunting. His path eventually led him to the Radford area, a place with a high population of students from his former university. He was now actively searching for a target. It was the end of the academic term at the University of Nottingham. For thousands of students, this meant a release from the pressure of exams. Celebrations were taking place across the city. Prism, a popular nightclub in the city center, was one of these locations. 19-year-old Grace and 19-year-old Barnaby Weber were at the club that night. They were among groups of friends and other students celebrating the completion of their first year exams. Around 3:00 a.m. the next day, they left the club, where they began their final walk back to their student accommodation, a journey of just over a mile. Their route took them out of the busy city center and into the quieter residential streets of the Radford area. By the time they reached Ilkston Road, it was approximately 4:00 a.m. This was the final stretch of their journey. They were now just blocks from the safety of their dorm rooms. By the time Grace and Barnaby reached the junction of Ilkston Road, they had decided to take a popular shortcut down a dark pedestrian alley. Valdo, who had probably known about this shortcut, had concealed himself in a corner and approached them with the double-edged dagger from his rucksack. The attack was immediate. Without uttering a word, Valdo targeted Barnaby first. He stabbed the 19-year-old repeatedly, inflicting grave injuries that caused him to fall to the ground. Grace did not run. Despite the danger, she immediately tried to intervene. She pushed Valdo away from her friend and into the road. For over 30 seconds, she fought the armed attacker, demonstrating what prosecutors would later call incredible bravery. Valdo then turned his brutal assault on her. He stabbed her 23 separate times, inflicting catastrophic wounds. [music] With Grace down, he returned to Barnaby, who was still lying on the ground. He stabbed him again repeatedly. A witness in the area who was reportedly woken by awful blood curdling screams looked out of his window to see the carnage and made the first 999 call. Police and paramedics were dispatched, but by the time they arrived, the attacker was gone. Valdo was now heading towards Mapperly Park. His impulse to kill was not satisfied. At approximately 5:00 a.m., he arrived at Celelyhurst House, a residential home providing supported living. He quickly tried to gain entry through the ground floor window, attempting to force his way inside when a resident inside was woken by the noise, saw his face in the window, and punched him. The confrontation worked. He retreated, thwarted in his attempt to attack the occupants. But this didn't stop him. He continued to the nearby Magdala Road. It was here just minutes later that he found his third victim. 65-year-old Ian Coats, a beloved school caretaker, was in his white Voxall van. He was on his way to work at a local primary school just 4 months away from his retirement. Valdo attacked Ian with the same merciless ferocity he had used on the students. He stabbed the 65-year-old repeatedly in the chest, inflicting 15 wounds. Valdo then pulled Ian from the driver's seat and left him for dead in the street. The attack method now changed. Valdo had a weapon and a vehicle. He took the van and his rampage became mobile. He was now driving, armed into the city center, actively hunting for more victims. There on Milton Street, he saw his next target, a pedestrian named Wayne Burkett, who was crossing the road. Valdo deliberately swerved the van at high speed, [music] striking the man from behind. The force of the impact threw him into the air, and he landed on the pavement, sustaining serious head and pelvic injuries. He still did not stop there. Minutes later, he continued to Upper Parliament Street where he saw two more pedestrians, Martian Ganssky and Sharon Miller, standing on a pedestrian island. Valdo aimed the van directly at them, accelerating onto the island and striking them both before driving away. Both were left with significant injuries, but survived. By this point, police were responding to multiple escalating incidents across the city. A marked police car spotted the stolen white van and a pursuit began. Officers tracked the van as it drove onto Bentic Road where they managed to box it in with their vehicles, bringing it to a stop as armed officers surrounded the van and ordered him to get out. Valdo produced a knife. He was immediately tased by two separate officers, causing him to drop the weapon. Police officers then pulled him from the driver's seat and arrested him on the ground. At 5:34 a.m., just 90 minutes after the first 999 call from Ilkston Road, the rampage was over. The city was in lockdown with three people dead and three others seriously injured. The man responsible was in custody, but his reason for all this would reveal a catastrophic breakdown of the systems meant to protect the public. The arrest of Aldo Calakon unearthed a history of systemic and catastrophic failures. He was not a stranger to authorities. He was an intelligent University of Nottingham graduate who had been diagnosed with paranoid schizophrenia in 2020. What followed was a multi-year cascade of missed opportunities across multiple agencies. His family had repeatedly warned mental health services that he was a danger to himself and others. He was detained under the Mental Health Act four separate times, but was repeatedly discharged. He was an intelligent patient and learned to feain compliance to get released. After which he would stop taking his antiscychotic medication. An independent review later found he was allowed to avoid long-lasting injectable medication simply because he did not like needles. The warnings were not just from family. They came from within the health system. In 2020, a psychiatrist wrote a stark warning in Valdo's notes stating that he might end up killing someone. This warning was never acted upon. The failures of the health service were compounded by the police. In September 2021, Valdo assaulted a police officer. A warrant for his arrest was issued in September 2022. For 9 months, Nottinghamshire police failed to execute this warrant. In a critical breakdown of communication, the NHS mental health team discharged Valdo from their care on the very same day the warrant was issued. He was now wanted, unmonitored, and untreated. The final red flag came just 5 weeks before the murders. In May 2023, Valdo attacked two co-workers at a warehouse in Lyershshire. He was dismissed from the job, but police were not alerted. He was left free to plan his return to Nottingham. When Valdo appeared in court, the case was not a question of if he did it, but why. The prosecution's case was clear. He was charged with three counts of murder and three counts of attempted murder. However, the legal proceedings soon shifted from a criminal trial to a psychiatric one. The court heard evidence from four separate expert psychiatrists. Their conclusion was unanimous. Valdo was and had been for some time suffering from a serious mental illness, specifically paranoid schizophrenia. The experts agreed that at the time of the attacks, he was in the grip of a severe psychotic episode. He was reportedly hearing voices that he believed were threatening and controlling him, telling him he must act or his family would be harmed. Based on this overwhelming and undisputed medical evidence, the Crown Prosecution Service, CPS, made a controversial decision. They announced they would not proceed with the murder charges. Instead, they accepted Valdo's guilty p to three counts of the lesser charge of manslaughter on the grounds of diminished responsibility. He also pleaded guilty to the three counts of attempted murder for the van attacks. On January 25th, 2024, Valdo was sentenced. The judge stated that Valdo's abnormality of mind had significantly contributed to the killings and that he was satisfied he would not have committed the appalling crimes if he were not ill. Valdo was sentenced to an indefinite hospital order to be detained at a high-security psychiatric facility. For the families of his victims, this legal conclusion was not justice. It was the final betrayal. The legal verdict was a devastating blow to the families of Barnaby Weber, Grace Omalikumar, and Ian Coats. They had come to court seeking justice for murder, but were instead presented with a finding of manslaughter. Standing on the steps of the court, Barnaby's mother, Emma Weber, spoke for all the families. She stated that true justice has not been served, branding Valdo a monster and accusing the Crown Prosecution Service of a farcical handling of the case. For the families, the verdict of diminished responsibility was not an explanation, but an excuse, one made possible only by the failures of other agencies. They felt the trial had focused too narrowly on Valdo's state of mind, ignoring the cascade of failure by the NHS and Nottinghamshire police that allowed him to be on the streets at all. Their grief turned into a formidable campaign for accountability. Refusing to let their loved ones deaths be reduced to a footnote in a psychiatric report, the families united. They publicly criticized the police for failing to execute the arrest warrant and the NHS trust for its repeated negligent discharges of a clearly dangerous patient. They argued that the attacks were not just preventable but predicted. Their relentless pressure, articulate public statements, and meetings with government officials forced the issue into the national spotlight. They demanded a full independent public inquiry into the actions of the police, the CPS, and the NHS. They argued that only this could uncover the full truth of the systemic breakdowns. In early 2024, the government conceded. A full independent public inquiry into the actions of the police, the CPS, and the NHS was announced. The family's fight had successfully shifted the narrative. The case was no longer just about the horrific acts of one sick man. It was about the accountability of the public services that had failed to stop him and the legacy of the three innocent lives they were all sworn to protect.