12:56

Gray's boss thought she was 'walking out of job' when she left work

Gray arrived home sometime around 1.50pm, the court heard. Around 20 minutes, she messaged her boss saying she had had to go home because she was feeling unwell.

At 2.46pm, Butler and Gray rang 999.

In a statement read out to the court, Gray’s work colleague Tracey Bernstein said she suspected something “was just not right” throughout the short time the defendant was in the office on October 28.

Gray, a graphic designer, had only been with the company for less than two weeks, the jury were told.

Ms Bernstein said: “She gathered her things, just stood up and walked out.

“The way she got up was just not right. I had the feeling she was walking out of the job and not coming back.

“I wondered if she just had enough and it wasn’t for her.”

Ms Bernstein said Gray had come into work and told her her partner was down in Cornwall, looking after his ill father, and that Ellie was being looked after by her godfather.

Other colleagues saw Gray on the phone shortly before she left the office.

