The suicide and double murder were originally attributed to anabolic steroid abuse, but a brain biopsy confirmed pathognomonic CTE tissue changes: large aggregations of tau protein as manifested by neurofibrillary tangles and neuropil threads, which cause neurodegeneration.
Selv- og dobbeltmordet blev oprindeligt tilskrevet misbrug af anabole steroider, men en hjernebiopsi bekræftede patognomonisk CTE-vævsændringer: store aggregeringer af tauprotein manifisteret som neurofibrillære sammenfiltringer og neuropiltråde, der giver neurodegeneration.