The BU CTE Center’s full statement on Aaron Hernandez, via its website:
A neuropathological examination of Aaron Hernandez’s brain was conducted by Dr. Ann McKee, Professor of Pathology and Neurology at Boston University School of Medicine, Director of BU’s CTE Center and Chief of Neuropathology at the VA-BU-CLF Brain Bank.
Based on characteristic neuropathological findings, Dr. McKee concluded that Mr. Hernandez had chronic traumatic encephalopathy (CTE), Stage 3 out of 4, (Stage 4 being the most severe). This diagnosis was confirmed by a second VABHS neuropathologist. In addition, Mr. Hernandez had early brain atrophy and large perforations in the septum pellucidum, a central membrane.