If his DNA matches the unknown DNA found at the crime scene, he did it.
One of the stations this morning said that earlier investigators had purchased and tested identical underwear - and that "untouched" package also had unknown DNA material on it, apparently from the manufacture or handling process.
Now, of course you're correct if the tests give a match...but I personally don't think that's gonna happen
"If his DNA matches the unknown DNA found at the crime scene, he did it."
Not necessarily. It would show he was there but not that he killed her. Admittedly, a good start, but they will still have a lot of work to do to establish guilt. With his mental background and the way the case is being outlined, there is going to be a problem getting past reasonable doubt. He hasn't even been charged yet and already he has an alibi, possible mental health history and inconsistencies in the confession.
Didn't OJ have a match? He was found not guilty anyhow./s