Speaking outside the inquest, Lisa Martin, who first informed police of the problems at the care home, said she felt she had no choice but to come forward:
I came forward because I had witnessed too much poor management and care to vulnerable adults and I couldn't live with the knowledge any longer and felt I had no choice but to tell the police.
Morally I know I did the right thing but personally I have not worked for two years and the case has had a huge impact on my life.
However, I wouldn't want to dissuade people from doing the right thing if they see vulnerable elderly people being abused and neglected.
Speaking of her former colleagues, she added: "They shouldn't be allowed to work in the industry."
More top news
Flamur Beqiri was shot dead in front of his family outside their home in Battersea.
The chief executive had been with Sainsbury’s for 15 years and been instrumental in making big purchases including Argos and Habitat.
A marathon session of nearly 13 hours ended near 2am local time.