I have ADHD, it wasn't diagnosed until I was 40 and I thought I had depression, anxiety, a host of personality disorders before I found out. I held down a high paying, high flying job in the health service and to outsiders I would have appeared normal, with a normal social life etc, if a little overly 'type A'. It was all a mask and until my diagnosis my inner and home life was chaotic and erratic, and my thought processes were irrational. Now I didn't murder anyone, my point is simply that presenting normally doesn't mean there aren't deep rooted issues. I could see myself having easily caused immense issues at work and hiding them. I think my thought patterns were so dysfunctional that in that case (obviously not murder) I would have benefited from psychiatric help and I hope if she is guilty she receives this as well as obviously life imprisonment. Edit: I am of course not suggesting ADHD leads to murder, or that Lucy has it!