The accused shooter faces a life sentence. He's expected to argue self-defense.
Joe McKnight, 28, is the second NFL player to die as a result of a road rage incident this year.
A 53-year-old Ohio woman was brutally murdered by a man who caused a car accident with her vehicle in the Cleveland area Saturday.
In a love letter Smith wrote for his family and friends in 2011, he stressed, "When I die I don't want people to cry. I lived a wonderful life."