I think some of what you’ve said is mixing up actual evidence with rumour and hindsight bias. A few points:
Excitedly informing colleagues a baby had died” - the prosecution did highlight texts where she told colleagues about deaths, but the “excitedly” part is total interpretation. The actual messages are quite flat (“Baby x has just died”). Nurses on that unit often shared news with colleagues. There’s no proof she was “gleeful”.
“Asking to go back on the same ward after distressing events” - in critical care, many nurses actively seek out high-acuity work. This is normal. Ambition to handle the most serious cases isn’t abnormal, it’s how people get experience and promotions. Framing it as suspicious is hindsight. The nurse who had the text exchange with Letby that was read out in court and framed in the media as “odd” was not called to speak at the trial ( she was likely not allowed to as is the case with the other nurses who wanted to speak in support of Letby). She was called to speak at Thirlwall.
That nurse is called Jennifer Jones-Key. At Thirlwall she was clear that she did not find LL odd at all in this exchange. In her Rule 9 questionnaire (dated 24 April 2024), Jennifer Jones‑Key explained that she had no concerns about the messages in question. She described Letby’s remarks expressing a desire to return to Nursery 1 after being assigned to Nursery 3 as totally understandable, and clarified that when she used the word “odd” in her response, as someone who didn’t work in intensive care this was odd not that Letby herself was odd.
“Failing training for lack of empathy” most colleagues described LL as conscientious, kind, and popular with parents. One examiner remarked that Letby “lacked a little bit of empathy” in her written feedback. Letby later passed this module though. Many nurses have failed modules that they later passed. I’ve definitely met several fully qualified nurses and doctors that I wouldn’t pass for empathy!
”Too many red flags” is just confirmation bias. Once someone is accused, every normal behaviour can be re-cast as sinister. At the time, managers and colleagues didn’t view these things as red flags. There were no complaints like this about Letby until after she was charged with multiple murders.
The medical evidence that murders occurred in the first place has been completely dismantled. The lead expert witness has been thoroughly discredited. Without actual evidence of murders, things like texting colleagues, wanting high-acuity shifts, or an old examiner once saying she was “a bit cold” are just ordinary events being re-interpreted through hindsight. I’m willing to bet that none of us have such a spotless professional history that no one would have a bad word to say in hindsight if we were accused of murders, particularly if we work in a field where proximity to death is a normal occurrence.