And so you think Gerry is sufficiently sociopathic to put his own self preservation first, and the search for his daughter and his daughter’s abductor second do you? You think he is so callous and cynical that he would invent a heart rending account of his last sighting of his daughter to fool not only the police but slso his wife, his other children and the rest of his family? Yet you also credit him with the capacity to feel shame? IMO these are not compatible traits. I think your narrative is coloured by your personal dislike of the man.
I don't think he would need to be a sociopath to manipulate the facts into a palatable narrative.
MM's disappearance must have hit like a bolt from the blue. I think it is safe to assume he could not have conceived of her coming to any harm otherwise he would not have left her in the first place. He scoured the locality hoping she may have wandered off and/or someone abducted her and left her nearby. He shortly realised this was not the case. KM could not bear to tell her parents so this task fell to GM who also had to tell his own family. It no doubt crossed his mind how all of this was going to look not just to the family but friends, neighbours, colleagues etc. And more importantly he had two other children. RO, a trained lawyer, whose husband was tasked with checking MM at 9.30 pm, may have sounded the alarm bells about the lot of them, T9, facing potential legal charges of child neglect. MO had no idea whether MM was present or not. It would have looked very bad indeed if GM had no idea whether or not MM was present at 9.00 pm.
For me all the surrounding testimony fits together if GM did not physically check MM at 9.00 pm. If he did check then for me all the surrounding testimony does not fit together. Therefore I choose to believe the former over the latter.