Phillip Adams, chronic traumatic encephalopathy, and football-related litigation / 2020s
The shooting became part of the NFL's continuing brain-trauma crisis after a postmortem examination found that Adams had Stage II chronic traumatic encephalopathy, with what researchers described as unusually severe damage in his frontal lobes. Boston University CTE researcher Ann McKee said the pathology was definitely associated with Adams's football career, although the diagnosis could not by itself prove that CTE caused the murders or establish a direct motive. Adams had played seven NFL seasons and 78 games for the San Francisco 49ers, New England Patriots, Seattle Seahawks, Oakland Raiders, New York Jets, and Atlanta Falcons; he suffered at least two documented concussions while with Oakland in December 2012. In the years before the shooting, relatives and his former agent described personality changes, isolation, memory problems, pain, sleep difficulties, deteriorating mental health, and repeated unsuccessful attempts to obtain disability assistance from the NFL. His family argued that football-related brain damage and the league's handling of concussion claims contributed to his decline, while the NFL pointed to its investment in neuroscience research and did not concede liability. The Lesslie family said the diagnosis offered an explanation and some comfort, but it did not erase the devastation. In December 2021, Shook's widow filed a wrongful-death lawsuit against Adams's estate; in April 2023, Adams's family sued South Carolina State University over alleged failures to protect and educate him regarding head trauma, and in May 2024 sought to add the NFL as a defendant. The case remains a grim example of the difficulty of separating neuropathological evidence from legal proof of motive or responsibility after a perpetrator's death.
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