Does he blame the insane mob that’s harassing him despite being told by authorities that the man they think he is is in custody?
He blames the man they’re assuming him to be. Why won’t the real Venables come forward so that the mob can direct their death threats properly? Even seeing the pitchforks coming for him hasn’t made Mr Calvert think twice about pitchfork justice. You’d think that being on the receiving end of the mob’s ire might have taught him something about the stupidity and injustice of the way it operates – but no, he really just wants to join it.
There’s a useful life lesson completely missed.