So if they have DNA, did they test RL when he was arrested? They either don't have it and said they did, or I'd think they'd have mentioned whether or not RL matched or not or they do and for some reason either didn't test RL against it or are keeping quiet about the results for some reason.
I think RL's arrest and the searching was something that needed to be done, so I'm glad they did it, so we can at least know how much of his property was involved, but I don't think RL is the guy or we'd know more by now. I think they're trying to cover bases...which is commendable considering some police forces don't, but I also think they're at a dead end.
I hate they can't share more with the public that might be able to help, but I understand they have to weigh the costs.