For me, it was like BS became GJ's dream potential suspect... with seemingly everything lining up.. he fit the bill... but the thing with all of that is that BS has personal relationship issues from the past, with certain people being all too willing to help hang him.
BS gets called to the FGM house to fix a washer, so he does that. A few third hand reports supposedly speak to MSM, perhaps with some conflicting stories - easy to do with all of the millions of discrepancies in reporting in this case, and easy to do when a reporter is getting info third hand, and then being bad at reporting on top of it. In any event, it's a fact that BS was at FGM's house a few days before WT's disappearance. Maybe he receives the part, maybe he doesn't, maybe he is scheduled to return to fix it on the Friday, maybe he isn't, maybe he tried to contact FGM to schedule a time, maybe she tried to contact him, who knows... but in any case, it is perfectly understandable, imo, that BS, upon hearing about this mysterious, highly publicized case, took special notice of it, just because he WAS there, and he WAS to return, he had actually been to the neighbourhood, and possibly even into the house. He could have even been kicking himself, FAWK, thinking that if he HAD showed up that morning, he may have been able to see something, someone, that perhaps could have helped the investigation. So he, of course, takes notice of this, posts a couple of mundane things on FB, such as .. 'where is he'.. blah blah. He feels like he's closer to this case, just because he WAS there... and so it becomes a 'story' that he innocently tells to friends/family (like perhaps most people would, given the same circumstances), and word gets around...
Meanwhile.. we have a bio mom who was deemed insufficient to raise her own children, and so her kids had gone to the grandparents as foster-carers, reportedly had been there for *years*. The grandparents being MS and BS. The bio mom's ex, and the father of her kids, happens to be MS's son, who seems to still have an intact relationship with both his mom and her husband (BS). Perhaps he was told this story by BS about his visit to this infamous FGM house, and the son then inadvertently shared the story with his ex, or perhaps the kids heard the story and shared it with their mom during a visit. The holiday season comes upon them, mom is lonely, doesn't have her kids, wants to have her kids, misses her kids, doesn't understand why she can't have her kids, and thinks about this highly publicized case, and there's Grandpa, who has her kids, involved in this case by virtue of having visited the home, etc.
Perhaps she thinks if she can find fault with Grandpa, cast suspicion upon him, then she will get her kids back, afterall, surely she must now look better to FCS as her children's caregiver than HIM. So she calls the police tip line and reports BS as a potential candidate to look at for the 'kidnapping'. And not only that, but perhaps from previously being a family member, she was also privy to the crazy ongoing allegations that were constantly streaming from BS's ex-wife (and perhaps religious zealot) over decades. She also calls FCS to ask why her kids are with this historical sex offender, and they (apparently) tell her that they're looking at him.. perhaps due to his ex's ongoing allegations? Now CAS has TWO concerned parties. Bio mom makes a big stink about all of this and suddenly the ombudsman is investigating why BS has children in his care. Perfect.
BS's ex-wife has been making these accusations for decades, perhaps to deaf ears.. for the entire time that her ex has been with his new partner, MS, over some 20 years? It seems that up until a certain point in time, BS was still in contact with one of his daughters that he had with his ex... so he easily could also have told this daughter about his infamous visit to WT's FGM's house.. and she could in turn, have easily told her mom, the ex, the story. This gives the ex some more ideas on getting back at her ex, and so she too calls the tip line... offers up BS's name, gladly telling the officers about all of her historical accusations that to date, had gone nowhere. Now they are listening to her! Perfect.
Suddenly GJ has all of this information coming up on one man, BS.. a man who just happened to have reason to be in the street, a man who it has been alleged for decades has been involved with horrible incestual child sexual abuse, a man who currently has minors in his care. He is the perfect candidate for GJ's theory, and so a big league investigation is ON. And MSM finds out, and has plagued the man in a big way ever since. Police scrutinize him, forensically search 3 of his vehicles, pump his septic, spend days searching a 'secret basement' under his house, dig up his fire pit, enquire as to how long ago a cement pad was installed on which to build a shed, search his workplaces, dig up his land, search his prior addresses, they take piles of stuff away for forensic testing. They've got their man. The media is happily all over him for all the world to know and agree. But even after all of the forensic testing and searching, no charges come of it.... but they do act on the ex's allegations of historical sex abuse and pursue charges, even though they didn't charge him originally. There are issues with the case, but it would certainly help him to fit the MO if these allegations could be proven in a court of law. BS's life as he knew it, both personally and professionally, is forever over, without his ever being charged, let alone convicted.
Such an interesting character, what with his talkative friend, 'Col', who supports him but yet perhaps inadvertently inspires even more suspicion upon him. Who knows whose mixups are in the press when different things are written by different news media at different times, it has happened all along, with each and every detail.
I too, hope that nobody is experiencing 'tunnel vision' with this theory, and with this POI, and perhaps at the expense of other theories and potential POIs. All moo.
