Jefferson, an Inglewood resident, was standing on a corner when a dark-colored vehicle with several male occupants approached and at least one person opened fire, the Los Angeles Times reported.
Authorities are investigating the shooting but it is now unclear whether Jefferson Sr. was the target or not. The senior Jefferson was reportedly pronounced dead at a hospital. It's unclear if Jefferson Sr. was the target.
Investigators do not know the motive at this time, the L.A. County Sheriff's Department told ESPN in a statement Thursday, and homicide bureau detectives are continuing to investigate the circumstances surrounding the shooting.
Born in South Central, Jefferson's parents separated when he was still a young boy.
We reached out to Richard's camp for comment.