So apparently a teenager has been arrested for sending "malicious" tweets to Tom Daley. OK, it was a cruel and upsetting thing to say ("You let your dad down i hope you know that.") but honestly, arrest? For what, exactly?
If Tom Daley had been standing in a pub, or walking down the street, and someone called out those very words to him, I do not for one moment believe that the speaker would have been arrested. So why arrest him because he tweeted it instead?
Obviously I don't condone him saying such a thing, and I do appreciate how much it must have hurt, but I really can't see that arresting him was an appropriate response. Get his mum to give him a severe bollocking instead. (In fact she probably did anyway, because he apologised very humbly afterwards).