Lol, Jeff. Derek Trucks is Susan Tedeschi's husband. He is the one playing that red SG guitar in the video you posted. He is also one of the guitarists in the Allman Brothers Band along with Warren Haynes.
Happy Hunting!
I Guessed which one he was by watching the Video But I didn't know he was her Husband,
I really am no Allman Brothers Band fan so I didn't know he was in there.
and I never heard of Warren Haynes either But Thanks !