This is probably what you saw?Just shows you how little we actually know about CTE but there as an article yesterday talking about how they found CTE in a patient who had no history of concussions. Sorry that I didn't save the link when I saw it.
http://time.com/5107151/concussion-head-injury-chronic-traumatic-encephalopathy/
Repeated Hits to the Head — Not Concussions — May Cause CTE