Investigators were trying to determine whether the shooting, which also wounded Smith's wife, was a case of road rage or whether there was some other motive, police said. The suspect, Cardell Hayes, 28, was arrested and charged with second-degree murder, the New Orleans Police Department said in a Twitter message. "Our investigation continues as to the motive of this shooting and whether or not Smith and Hayes knew each other prior to this incident," Police Superintendent Michael Harrison said during a news conference on Sunday.
