I don't think he was on the SDEC, that's an elected post.
It would be SD24 if he was though.
I know he's not one of the SDEC 24 reps now.
And of course, he says he is not in the e-mail itself, which removes the issue.
I think the highest rank Burkett could have ever achieved in the party was a precinct chair, but it's more likely he was just a lowly activist.