I agree. He was found by the car trace he left. The moment LE got him as far as Troy 2 weeks ago, no news were let out, so LE were onto something. Well done to them!My thoughts, yes he had a fingerprint clearance card, but I don't think he left prints. I feel he was prepared, gloved up and wanted to see how much he could get away with out leaving prints/dna. I feel that the car was the whole clincher. Still awaiting much more info as I am sure there is more to come.
But killing 4 people as a PhD research? That is something new in the criminal psychology, he may become as a part of research himself as an object, for all horrible reasons.