Hi, sorry it's taken me a few days to get back.
Although I've made this point many times in the past, I'll make it again, just for clarity. When I discuss people connected with this case, I'm not making any suggestion that they're guilty (or possibly guilty) of anything - I'm pointing out failings in the police investigation.
My take on Kelly is that it was absolutely bizarre that the police handed him an innocent explanation for his DNA being found on the t-shirt Jodi was wearing. Fifteen years later, it has still not been confirmed that the t-shirt was definitely one of Janine's that Jodi borrowed without permission. There was none of Janine's DNA on the t-shirt and it was "freshly laundered," yet had visible semen staining on it.
The "washing machine transfer" or "rainwater transfer" theories do not, and cannot, account for visible semen staining. It also had a large saliva stain; the originator of that saliva was never identified. How, amongst all of that visible evidence, could anyone be certain that a full DNA profile got there by transfer in a washing machine, prior to the depositing of the other substances?
The rainwater theory is even less credible - it means DNA from Kelly had to first survive a machine wash (which is, theoretically, possible) and then be transferred, by the rain, from wherever it survived on the t-shirt, following the wash, to where it was found. But the prosecution theory was that only Kelly's DNA was transferred by rainwater - that same rainwater didn't transfer or disperse the visible semen or saliva staining.