UPDATE (January 26, 2018 4:46 p.m.): Andrew Carroll's cause of death was complications of multiple blunt force head injuries due to the jump from the height, according to the Cook County Medical Examiner.
The medical examiner deemed Carroll's manner of death as suicide.
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Researchers at Boston University will be studying the brain of the former Bakersfield Condors player who committed suicide this week, according to the family members.
Andrew Carroll's family confirmed to 23ABC that Boston University reached out after Carroll's death to study his brain for chronic traumatic encephalopathy.
RELATED: NFL official acknowledges link between football and CTE
Carroll, 32, died on January 23 after jumping from the upper level to the lower level at Chicago’s O’Hare Airport, according to Chicago Police.
CTE is a degenerative brain disease found in people with a history of repetitive brain trauma.
RELATED: Brain disease seen in most tested football players, study says
Carroll showed no signs of depression that led to his suicide, according to his brother, Chris Carroll.
The Condors will be holding a moment of silence for Carroll before their 7 p.m. game Friday night.
