More nonsense.
This isn't about burden of proof. But, I see why you'd want to change the subject.
It's
totally about burden of proof. Whether or not I can name a witness who said Oswald was NOT the cop-killer is completely irrelevant to your claim that Oswald killed Tippit.
It's obvious that you can't name one witness who I am ignoring, regarding whether or not Oswald was Tippit's murderer.
There is only a single eyewitness to Tippit being murdered.
But I can name several witnesses you are ignoring the testimony of. You just handwave them away with your "not a real witness" nonsense.