[respectfully snipped
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Yes, I think it's important to remember that it's the media's job to make stories compelling enough to keep readership up and, hence, why I always go back to direct quotes from the police because they're the ones who are going to give you the straight facts without any embellishment.
I would think that anyone involved in the investigation would hope for a confession rather than having to charge someone and then they have to either a) try to get a confession out of them or b) take them to court. It's possible in court that the person(s) responsible could get off, even if there is both circumstantial and factual evidence. IMO If GBC is the prime suspect, the fact he has "lawyered-up" has probably meant the investigators feel they need to cover all bases (have as much evidence as possible) to charge him. If GBC was charged he would be questioned (with lawyers present). If the lawyers can find any holes in the evidence (circumstantial or not) presented they will be able to walk out of that police station with GBC still a free man BUT the lawyers will have a whole lot more to go by. The questioning by the police will give the lawyers a new insight into how much information the police have on the case. That will give them more time to work on a defense for GBC before the police bring him in for questioning again.
I think the investigators feel they have one shot at this or, at least, one best shot. If they don't get it right the first time it's going make this thing drag on for months/years.
All IMO.
As an aside (still IMO): this has been a very emotional case for all involved including investigators. I have thought that if GBC is their main suspect, and even if investigators have a fair bit of evidence to prove he did it, they might also be thinking "no need to rush" because of ABC's three girls. Regardless of whether GBC is guilty or not, imagine the impact losing their father straight after losing their mother. I know some will probably think "But if he did it, imagine how they're going to feel if this drags on and then eventually they have to face the reality their father killed their mother!" However, in my heart I think that having him around at the moment is the lesser of two evils. There is no doubt in my mind that he loves his girls. I think the grief he displayed at the funeral was more about them than Allison but I think it was heartfelt nonetheless. My thought has always been this was not premeditated. Things got out of hand. If he did do it, I think in his mind he's probably thinking "OMG what have I done!" not anything like "well, I'm glad she's dead". I think he panicked and now he can't undo what he's done. I'd be guessing he wishes he could.