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.
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.
There are suspicions Chua may not have been a qualified nurse