What is chronic traumatic encephalopathy?

POSTED: 4:48 PM PDT May 6, 2012    UPDATED: 6:12 AM PDT October 2, 2014 
Jovan Belcher

An autopsy performed one year after Kansas City Chiefs linebacker Jovan Belcher fatally shot his 22-year-old girlfriend and killed himself found signs of chronic traumatic encephalopathy (CTE). Find out more about chronic traumatic encephalopathy, the disease several former NFL pros claim they are now suffering from due to hits on the field.