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Killer nurse Victorino Chua is facing life in jail when he is sentenced today for poisoning and murdering patients.
Filipino Chua, 49, described as a narcissistic psychopath by detectives, was convicted of murdering two patients and poisoning 19 others with insulin by a jury at Manchester Crown Court yesterday following a three month trial.
Tracey Arden, 44 and Alfred Weaver, 83, died while a third person, Grant Misell, 41, was left brain damaged.
His victims' loved ones are expected to be in court as Chua is sentenced to a minimum of two mandatory life sentences for the murders.
Victorino Chua was trusted to care for his patients. Instead he murdered two of them and deliberately poisoned 20 more.
Chua injected fatal levels of insulin into saline drips, which were hooked up to patients by him and by unwitting colleagues.
Today, a court found him guilty - but his motives remain a mystery.
ITV News North of England Correspondent Damon Green reports:
Sir Peter Fahy, chief constable of Greater Manchester Police (GMP) has apologised to nurse Rebecca Leighton, who was initially arrested in the investigation, while Victorino Chua, who has been found guilty today, kept his silence.
Greater Manchester Police (GMP) praised the CPS and thanked Stepping Hill Hospital after Victorino Chua was found guilty of murdering and poisoning patients.
GMP said it was "incredulous to believe someone in that vocation to be capable of such malevolence."
The investigation into the poisonings and deaths at Stepping Hill Hospital was one of the biggest and most complex launched by Greater Manchester Police (GMP).
Operation Roxburg was a multimillion-pound three-and-a-half-year police investigation, involving 7,700 police actions, 659 witnesses, a 28,100-page prosecution file and 16,000 items of unused evidence material.
The Crown prosecution Service (CPS) has spoken of the complex nature of the case against nurse Victorino Chua who poisoned saline at Stepping Hill Hospital.
Nurse Victorino Chua was convicted of murdering two patients but cleared of a third murder by the jury at Manchester Crown Court, which had been deliberating for 11 days.
He was found guilty of murdering Tracy Arden, 44, and Alfred Derek Weaver, 83.
He was cleared of murdering Arnold Lancaster, 81, who was suffering from cancer, but convicted of attempting to cause him grievous bodily harm with intent by poisoning.
In all Chua was convicted of two murders, 22 counts of attempted grievous bodily harm, one count of grievous bodily harm, seven attempts of administering poison and one count of administering poison.
The chief executive of the NHS trust which runs the hospital where a nurse murdered two patients has apologised to the victims' families for "the distress they suffered".
Ann Barnes of Stockport NHS Foundation Trust said: "These were shocking and appalling crimes that took place when the patients should have been receiving nothing but the highest quality care."
"This has been an extremely difficult time for the victims and their families and our thoughts have been with them throughout this time."
She added: "Whilst no hospital's systems and processes can offer a complete guarantee against the actions of a determined criminal, additional measures are now in place which go beyond standard practice.
"What is clear from the evidence is that an extremely dangerous criminal has been brought to justice. In part this was due to staff identifying the problems quickly and also fully assisting the police investigation. We would like to thank our staff for showing great professionalism throughout this time."
Latest ITV News reports
Kathleen Murray told GMB she woke up 'shaking uncontrollably' after being poisoned by Victorino Chua who was the nurse on duty that night.
ITV News has uncovered doubts over how qualified Victorino Chua was before he came to the UK and poisoned patients.