if police had found anything during the searches he would have been charged. They charged him with the historical offences and he spent time in jail before getting bail, so it cant be the case that they found other evidence of offending but have chosen not to charge him in the hope that BS will lead them to WS. If the sole aim of the investigation was finding WT, he wouldnt have been charged with the historical charges yet.
I have no opinion on his guilt or innocence. But its certainly not ridiculous for posters to think BS might not be involved because he hasn't been charged yet. Ive read far more ridiculous theories and conclusions on this thread.