It was in a police report.
Jackie Kennedy testified before the Warren Commission that she did not have any recollection whatsoever that she crawled onto the trunk of the presidential limousine when Jack's head was blown off.
I believe that it is disgraceful to mix theories, opinion, speculation and statements of fact together and to discuss Patsy's "undiagnosed mental illness" as a given, and simultaneously claim that no one is saying Patsy suffered from mental illness.
Why is that disgraceful? If you feel some speculate Patsy suffered from an undiagnosed mental illness, you are also speculating that she did not. That's the thing with an undiagnosed malady. No one can say for sure.
All we can do here on both sides is try to put together our theories, beliefs, opinions and what little facts we have (LE has said only about 10% of the evidence has been released to the public) and try to figure out what really happened that night. I see no disgrace there. We are all here to the same end. It has been said here she may have been suffering from mental illness, either a classifiable one or one that was the product of her cancer/treatments.
By the same token, people look at heinous crimes like this one (not limited to this one) and how many times have you heard or read that whoever did this had to be crazy. I've heard it in the Yates case, Susan Smith case. Whether temporary mental illness or not, in the Yates case as you mentioned, it was known. Had it not been known, it would have been no less speculated on and no less evident.