 He was hospitalized after visibly showing signs of extreme exhaustion with a body temperature of recorded upon arrival.He was later airlifted to the R Adams Cowley Shock Trauma Center to receive an emergency liver transplant, where he died on June 13.Though no cause of death was initially listed for McNair, findings published by ESPN in August show that he likely died of a heat stroke, with teammates and medical staff noticing an apparent seizure one hour before a 911 call was placed.