I think you are under playing the crime. Child porn and money laundering were also mentioned with their implied links to other types of serious crime. More details are seeping out.
Maybe I’m being a bit dim but these crooks seem to make lots of money yet when they show pictures of them at home they appear to live in an untidy, dirty hole. What do they do with the money?
Ok they might stash it away somewhere but it probably won’t take much for it to be traced.