He said he’d killed someone, good chance that is true given that these group of crimes as a whole are about as psychopathic as one could get.
Obviously there are murderers who have done as bad or worse but there is something quite unique about the sustained thought and action in this spree, and it’s absolutely sickening.
I posted the other day about how J McCann and his family were in the news in Manchester from a young age for terrorising their neighbourhood but J McCann seems to have been involved in robbery through adulthood.
One thing I noticed is that there is a double rapist called Derry McCann from the Bow area who looks very similar to J McCann and had some similarities in his crimes (multiple attacks/robbery with a knife. Both would then pretend the victim was one of their many girlfriends/wives). They are not brothers as far as I can tell but could be related. Was Derry McCann part of the traveller community in Bow?
Do you mean the "wedding-day rapist?" If so, then yes there are some startling similarities, though I'd expect at least the DM to have reported on those, given their breathless coverage of the original crimes.
I can supply a link if allowed, or you can search it.