The National Transportation Safety Board is looking into what caused the crash that killed Bryant, his daughter and seven others. A witness told ABC News he saw the helicopter flying low.

WATCH NIGHTLINE EPISODES:
https://abc.go.com/shows/nightline

ALSO AVAILABLE ON HULU: https://hulu.tv/2wSmSrZ

#Nightline #KobeBryant #Lakers #Basketball #HelicopterCrash #NBA