Shades of the Michelle Parker case as well as Claudia Lawrence. Tbh, if you were going to "profile someone in" to this disappearance, Ben Lacomba gives you plenty of material.And for me, the fact that police held him for 72 hours, says to me they are highly suspicious of him and they know much more of the details than us.
Much as I dislike the concentration on Sarah's personal life, it is relevant in the sense that the more partners/exes there are in a woman's life, the more suspects you have. Cases like this always remind me of Jennifer Kesse, so many potential suspects. But where you have a toxic divorce situation and as it appears, the woman goes missing from their shared home, statistics show what is likely to have happened.
I am presuming Lacomba was at home the night of 9th October, I wonder what he is saying to the police about what happened, she left with someone else who picked her up, she didn't come home that evening after work (even though her car is there), or she was gone in the morning (I saw nothing, m'lud). After an argument I expect. I wonder what the children are saying happened. Their accounts would be very interesting.
The delay in reporting her missing and we don't know by whom is possibly quite significant. Time for tracks to be covered, or may just show how bad the relationship was, someone goes off and you're so annoyed with them you are just happy they're gone then you start to wonder. Have to say the comments by Lacomba's father, son's a "good man" and "there were other men so I suppose she just went off" do show a marked lack of concern, for a woman who is after all the mother of your grandchildren. Seems very defensive and to me, inappropriate under the circumstances. The police don't think she just went off with another man and they questioned your son for 72 hours?