i think it's Cedric, his grandson.
he produced the "Come On In" album
Cool thanks, I think you may be correct. Grandson makes more sense than son. Didn't he have a couple of sons that played music as well? Very possible I'm not remembering correctly though
They guy I started a business with used to live down in Mississippi in the late 80s through mid 90s, and he knew the guys that started Fat Possum. He got to see RL play a bunch of times. Good stuff.
Edit: I just saw your follow up post, I guess don't know which son or grandson that is. I assumed it was one of them though as the people in that video were mostly his family members I believe.