A nurse has been found guilty of murdering and poisoning patients at a hospital in the UK.
Victorino Chua, 49, injected insulin into saline bags and ampoules while working on two wards at Stepping Hill Hospital in Stockport in June and July 2011.
These were then unwittingly used by other nurses on the ward - leading to a series of insulin overdoses to mainly elderly victims.
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.
The Crown said the father-of-two had decided to take out his personal frustrations on patients "for reasons truly known only to himself".
After police were called in, Chua was said to have "changed tack" by sabotaging prescription charts, doubling and trebling dosages - some with potentially lethal consequences - leading to his arrest in January 2012.
Among the evidence produced by the prosecution was a self-penned letter found at Chua's home in Stockport after his arrest.
In the letter, described as "the bitter nurse confession" by Chua, he said he was "an angel turned into an evil person" and "there's a devil in me", who had things he would "take to the grave".
He was found guilty of murdering Tracy Arden, 44, and Alfred 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.
Ms Arden, who had multiple sclerosis, was admitted for a "mild" chest infection and would have expected to "sail through this storm".
But she was pronounced dead eight hours after admission after being treated with a saline ampoule contaminated with insulin.
Mr Weaver was admitted with a chest infection and after being given a saline drip, he "appeared to be in agony". He died ten days later.
Chua blinked as the verdicts were delivered but gave no other reaction.
He will be sentenced tomorrow.
