I'm still awake with a raging tooth abscess and can't sleep :-(
The Standard has updated its timeline:
http://www.standard.co.uk/news/crime/tia-sharp-developments-as-they-unfold-8014761.html
I'd forgotten that Hazell had a biological daughter, but 'didn't see her'. No mention of her age or the mother or anything, but I expect we'll hear something from her later. I bet she's thinking what a lucky escape she had (if it turns out that Hazell was involved in Tia's death).
It made me think of something I read recently where a woman got involved with a seemingly charming man who had children, but didn't see them... claiming that his ex-wife made it difficult - and then it was discovered he was a paedophile and had served time in prison. Was Hazell trying to recreate the family life he'd lost? And why did he lose it?
His dad maintained that he'd 'really turned his life around and that family meant everything to him' - which just goes to show how easily it is to be fooled if you want to be fooled.
Finally, I wonder how often Gran did overnight shifts at the carer's home where she worked, while leaving Tia alone with Hazell.