And here is the cross examination, from Sky News
The prosecution is now focussing on a note Letby wrote on a yellow post-it note addressed to the three triplet boys.
"I am writing how I was feeling at that time, and it was their birthday and I mentioned all three of them," Letby says.
The note reads: 'Today is your birthday and you aren't here. And I am so sorry for that.'
"Why were you including [the other triplet]?" Mr Johnson asks.
"I've written three names, I also wrote [colleague]."
The prosecution asks the question again.
"I can't answer that," Letby says.
"Is that because in your mind there was a terminal end in store for [other triplet] if he stayed with you?"
"No," she replies.
"Was that your objective to kill all three?" Mr Johnson asks.
"No."
Johnson was well aware that the note was written after Letby was stopped from working on the ward, because he asked her why there existed photos of her smiling on days out around the time she wrote notes showing such distress. Awful stuff.