纽约枪击案杀手携带小纸条暗示行凶原因！只因得了这种脑疾病？

Group 1 - The shooter in the recent New York City shooting claimed to suffer from Chronic Traumatic Encephalopathy (CTE), a severe brain disease often found in individuals involved in contact sports due to repeated head trauma [1][3] - CTE is characterized by cognitive function changes, including dementia, and currently lacks effective diagnostic methods, with the only definitive diagnosis possible post-mortem through brain tissue examination [3][4] - In 2013, the NFL reached a settlement with over 4,000 retired players, agreeing to pay nearly $1 billion in compensation for failing to adequately warn players about the risks of concussions and not providing sufficient support for those affected [4] Group 2 - The shooter had a history of playing football at the high school level, and his football career was interrupted due to brain injuries, although he was never an NFL player [3] - A neurosurgery expert highlighted that CTE differs from concussions, as it results from repeated injuries rather than a single incident, and the misdiagnosis rate for CTE is high due to the reliance on patient history and symptoms [3]