Guilt is a VERY normal emotion in parent/child relationships.
We call it mum guilty when our kids are small. But then at some point, when the kids grow older, it often flips and children start to feel guilty. It's extremely normal and comes hand in hand with dependency which LOTS of family members feel.
I find all of the over-thinking about phrases quite worrying to be honest.
Of course her mum didnt think she was guilty. If she did, she wouldnt have said "that can't be right!".
And when LL said, "coming back with a bang", she probably didn't use that as a confessional to her colleague that she's going to start killing again. It's a VERY normal expression when you work somewhere busy.
And "they're not getting out there alive aren't they" about the third triplet. I really don't think that was a threat. I think it was a clumsy way of saying, if two of the three babies have died, are the odds that the third will?
I'm not saying she's innocent. I think I actually believe now she's guilty (I used to think innocent). But I really cringe when I see people use these everyday expressions to 'prove' she's a killer. They're evidence of nothing. Absolutely nothing.
The real evidence, I believe, is the fact that the deaths started and ended with her presence on the ward.