I've seen an interesting Amelia Bones theory at one point... That's *not* to say that I don't think it's ******'s brother (it would be so very neat and twisted if it were!), just the 'how' escapes me, no matter how I rack my brain. You know, when ****** says to ****** 'I couldn't have done it without you' (or somesuch), it leaves me perfectly puzzled as to how ******'s brother would have pulled it off.