It is incredible how long fingerprints can be detected, I remember seeing an oldish tv show about forensic scientists trying to identify a young woman's body, can't remember how long she had been deceased but they placed her hand/hands in some sort of fluid and rehydrated what was left and the fingerprints appeared. A bit like when you spend a long time in the bath and your fingers puff up.
What I do wonder though is how none of the poor victims' remains in the planters were not detected by a pet, or a visitor's dog? I suppose that is part of the deranged psychopathic thinking, really it was a huge risk by McArthur as surely there must have been some sort of dectable scent, even by humans, let alone animals. When you watered the planters or removed dead leaves/flowers? It is a smell that is very distinctive.
I wonder if Andrew Kinsman and Bruce McArthur were caught on CCTV together somewhere close to the date of his disappearance and someone in the area was able to identify McArthur? There's no doubt this is going to be a landmark investigation and I hope that in time a lot of important developments in policing can be learned from it. This thread has been horrifying and will probably get more horrifying but there have been a lot of really informative comments from the very committed contributors here, thank you for that.
Particularly in ways that perhaps studying these patterns, locations, similarities of disappearances, maybe computer programmes could be developed to pick these up and alert LE so that serial killers could be spotted earlier and lives could be saved. Apologies I can't remember who posted a while back about the criminologist who spotted the emerging pattern here and the journalist who kept pressing the issues. I think there are already ways of plotting victims which may pinpoint a likely area where the killer lives. Just hope there might be something to emerge out of this that will help stop the next monster earlier.