Again, the legal standpoint, yes, already extensively debated.
In any case, I'm not sure if there weren't tentative alibis through MWT doc.
Just to "close" this topic, if CB is innocent, he could nip the speculation by clarifying or providing a justification for his whereabouts on the 3rd. It was national-world news, his phone was pinged in the town that night. If he didn't do it he would have at least have thought about where he was around that time given his proximity to the area, so he would still be able to recount now where he was when this happened.
And, of course, I believe that BKA has also tried the counter-check but: We found nobody who gives Christian B an alibi.