Former USC star and NFL player Joe McKnight was shot to death following an argument at an intersection with another motorist.
Jefferson Parish Sheriff Newell Normand says it happened about 2:43 p.m. local time Thursday in Terrytown, a suburb of New Orleans.
Normand says the 28-year-old McKnight was standing outside his car when he was shot by 54-year-old Ronald Gasser.
Normand says Gasser stayed at the scene and relinquished his weapon to responding officers. He says Gasser is in custody and being questioned.
Sheriff's spokesman Col.