Victorino Chua , meanwhile , denies murdering patients at mercy hospital in hospital . another suspect also accused of poisoning 18 more at Stepping Hill hospital . Denies injecting cocaine and other drugs into bags of heroin on ward .
Victorino Chua , 49 , denies murdering patients at Stockport hospital in 2011 . Filipino nurse also accused of poisoning 18 more at Stepping Hill hospital . Denies injecting insulin and other poisons into bags of medicine on ward .