They are holding up a man in front of the camera who has already forgotten just what it is he did.
What story does he have to "tell" exactly?
This is all about capitalizing on dad's crime. Don't Son Of Sam laws prohibit this?
If you changed the order of words to "just forgotten" then that would apply to behavior exhibited in typical Alzheimer's disease, i.e. short term memory loss, but the long term memory remains intact.
If there are no abnormalities on a MRI or CT scan of the brain, the inappropriate behavior of Felt in the nursing home also agrees with typical Alzheimer's patients, but the diagnosis can only be confirmed by autopsy. There are other causes of dementia.
I'm not sure if there is a federal version of that, but maybe all, or just some, of the states have their equivalent.