The more interesting story here is how he was able to confuse authorities for years by creating a slew of fictitious identities online. A good chunk of the privacy debate focuses on anonymity, but stories like these suggest that increasing the noise-to-signal ratio may be even more effective.
That, plus the fact that it was the social contacts that broke him.
If you could break all social and family ties, you could probably get away with a lot. But you'd also be alone and vulnerable in the world. Tough choice.
Maybe the master criminals build up separate identities with separate networks of social relationships.
That would make p̶s̶y̶c̶h̶o̶p̶a̶t̶h̶s sociopaths pretty much the créme de la créme, which doesn't come as a surprise, given their prominence among the world most grisly killers.