Here's a question.
I know a lot has been reported in the press about the murderer. While most or all of it may be true, I approach it with caution, if only because it's effectively impossible to libel a convicted murderer, so if a journalist (even a good one) can simply get one person to assert something, apparently in good faith, then the journalist can then report it as a matter of fact. It's a different standard than would apply in the case of someone 'of good reputation', where much more effort would need to be made to 'stand up' potentially libelous material. Thus anyone who's purely out to gain clicks can print more or less what they like.
Similarly, having lived in a number of small communities, I am pretty sure that while people may well have a good sense of who's basically good or bad news, there is also the danger that gossip and hearsay gets blown up into 'fact', some of which may turn out not to be entirely accurate. So again, while local rumour may be right, it's best to approach it with a degree of caution.
What I want to know, then, is whether A has any previous outstanding charges or convictions - or indeed whether it is possible for us to know this, or whether, due to his youth, there is still a residual reporting restriction on charges and / or convictions. The reason I ask is that he himself apparently said something along the lines of 'the police always blame me for everything' - but is there any evidence that he was ever actually in trouble with the law?
Otherwise, it seems odd that he could have half-drowned someone, tortured animals, frequently carried a knife, sexually abused a minor and shown others visual evidence of that abuse, etc, etc - with all of these activities apparently well-known locally - and yet, by all accounts, to have carried on what looks like quite a normal social life, complete with friends, girlfriends, parties, school and so forth.
Just to be clear, I completely accept the guilty verdict, based on strong forensic evidence. But none of us likes the idea of living in a random universe where innocent children can be murdered for no reason, so I guess it's human nature to try to make sense of how and why it all happened. And personally, when it comes to the 'how and why', there are still a few things that remain unclear to me.