Details emerge from the shooting death of former USC standout Joe McKnight

Tragic details emerge.

Former USC standout and fourth-round NFL draft pick Joe McKnight was shot and killed at just 28 years old after an altercation at an intersection Thursday afternoon, per NOLA.com.

According to NOLA, Ronald Gasser, the 54-year-old man authorities say shot McKnight was not charged following the incident and was released from custody. The man stayed on scene, turned over the gun and was taken into custody before eventually being released.

The "stand your ground law" in Louisiana states, "A homicide is justifiable . . . [w]hen committed in self-defense by one who reasonably believes that he is in imminent danger of losing his life or receiving great bodily harm and that the killing is necessary to save himself from that danger," per Pro Football Talk.

Prior reports noted what a witness reportedly saw:

"A witness, who declined to give her name, said she was leaving a store in the area when she saw a man at the intersection yelling at another man, who was trying to apologize. The man who was yelling shot the other man more than once, she said.

She said the shooter shot the man, stood over him and said "I told you don't you f— with me." Then he fired again, she said. "

McKnight played three seasons at USC, registering 2,213 yards and 13 touchdowns on the ground. He also had 542 yards receiving over his career and two touchdowns through the air.

McKnight played four years in the NFL. He was drafted in the fourth round by the New York Jets, where he played four three seasons. He last appeared in the NFL in 2014 with the Kansas City Chiefs.

He was still working on his football career, appearing on two Canadian Football League teams earlier this season.

The shooting death comes months after former New Orleans Saints standout Will Smith was shot and killed in a vehicle altercation as well.

Detectives reportedly reviewed surveillance video released by FOX 8 News in New Orleans, which appears to show former Pro Bowler Will Smith's vehicle striking Cardell Hayes' Hummer prior to the road-rage shooting that killed the former New Orleans Saints defender.

"Prior to the actions that led to Mr. Smith's death, my client was involved in a hit-and-run. Someone hit him. The person failed to pull over," Hayes' attorney, John Fuller said, per CBS. "My client trailed behind this person in an effort to get their license plate number. My client also called 9-1-1."

Attorneys for Hayes have maintained he shot Will Smith in self-defense as well.
Three guns were reportedly recovered from the scene, including two from Hayes and a loaded handgun from Will Smith's vehicle (police maintain there is no indication that the former Pro Bowler fired the gun).

Will Smith's wife, Racquel Smith, was shot in the leg and treated for her injuries, while Will Smith was shot in the back and side following a reported road-rage incident and died shortly thereafter, according to the USA Today.