A mental health nurse failed to check on a patient she held a 'grudge' against for almost half an hour before she took her own life.Laurence Tchapong, 54, should have carried out observations every five minutes on Amy Barber, 22, at the Brooklands psychiatric intensive care unit at Clatterbridge Hospital, Wirral.But Liverpool Crown Court heard that the nurse resented Ms Barber for complaining about her sleeping on the job and had not checked on her for 25 minutes.She was found unresponsive by another member of staff, at 8.40pm, on June 30, 2022.Ms Barber was taken to Arrowe Park Hospital nearby, but she had suffered a catastrophic brain injury and died four days later.On Tuesday Tchapong, who it emerged was working two jobs at the time of Ms Barber's death, was jailed for four years.The court heard the Cameroon-born nurse panicked and altered observation logs following Ms Barber's death, 'deliberately lying in those records to try and evade justice'. A police mugshot of Laurence Tchapong who was jailed for four years for wilfully neglecting patient Amy Barber, 22 Amy was diagnosed with mental health problemns aged 14 and was supposed to be checked on every five minutes while a patient at Clatterbridge Hospital, Wirral, MerseysideShe was caught out by CCTV which showed no checks on Ms Barber had actually taken place.During a trial, in July, Tchapong claimed the unit was understaffed at the time and she was busy with other patients.But the jury rejected her explanation and found her guilty of wilfully neglecting Ms Barber after deliberating for just 15 minutes.Sentencing Tchapong, Judge Anil Murray said she disliked Ms Barber, who had taken a picture of her sleeping at work and reported her to management, because she had received a verbal warning as a consequence.'I am sure the defendant held a grudge because Amy had previously complained about the defendant,' the judge said.In a victim impact statement, Ms Barber's mother, Susan, of Nantwich, Cheshire, said her 'bright and clever' A* student daughter was 'let down' by the NHS and begged officials to 'learn from this'. Amy and her mother, Susan Barber, 59, who said her 'clever' daughter had been 'let down' by the NHS CCTV footage of Tchapong (pictured) revealed she had not checked on Ms Barber and had altered records to try and cover her tracksShe said: 'She was the most caring, bright, funny and intelligent girl. She was driven. That drive was taken away by a system that let her down.'Mrs Barber, 59, added: 'What I didn't know until the trial was that she (Tchapong) walked past Amy's room three times and didn't go in. She was doing other things rather than looking after my daughter.'We've had to listen to Amy's last hour over and over again because she pleaded not guilty.'The court heard Ms Barber had been diagnosed with mental health problems, including an emotionally unstable personality disorder and an eating disorder, aged 14, in 2014. She also had a history of self-harm and was transferred to the Clatterbridge unit in 2019.Tchapong, of Manchester, qualified as a mental health nurse in 2004, the court heard.At the time of the incident, she was working a full-time job close to her home as well as doing agency work at Clatterbridge.In evidence at trial, Tchapong said the ward had been understaffed and she had to carry out additional duties on the evening of Ms Barber's death, but the judge said the jury had ruled out both assertions.The court heard Tchapong was 'resentful' of the hospital and felt she was being treated as a 'scapegoat'.Judge Murray added: 'It is suggested the defendant is remorseful. I can't accept that as the defendant does not accept she is to blame here.'Patrick Cassidy, defending, said the intensity and difficult nature of mental health nursing could sometimes 'wear down the resilience and the professionalism of those who operate in that sector'.He added: 'There can be a confidence that there will be no further offences by this defendant.'Tchapong, who the court heard was of previous good character, showed no reaction as she was jailed.Maqsood Khan, a senior prosecutor with the Crown Prosecution Service in Mersey-Cheshire, said: 'Laurence Tchapong held a position of significant trust and responsibility, caring for a vulnerable patient who was known to be at risk and required regular observation.'She failed to carry out the checks she was responsible for and then sought to conceal her actions by falsifying records.'This was a young woman receiving treatment in an environment where she and her family had every right to expect she would be properly cared for and safeguarded.'The impact on her family has been profound, and our thoughts remain with them.'