Well, low and behold and much to my surprise it was Bryan Wilks, lol. So, not wanting to see a poor defenseless kid get pwned - especially by despicable Raiders, I whipped out my M1 Garand and took him out. (I was standing a little below where Paladin Bael and the Sentry Bot usually stand.
So, I expected Bryan to simply run up to me and go through his forced dialog, and as he approached, Paladin Bael and the Sentry Bot bolted past me and headed straight to Bryan where they proceeded to pummel him with minigun spray and laser bolts. It was friggin hilarious. He would get knocked "unconscious" and they would cease fire, and as quick as he would get up they would start in on him again. Poor kid, good thing he's essential, lol.
I finally had to leave the area and hopefully he will reset the next time I'm around Super Duper Mart, but this was pretty funny, and I'd never seen that happen before. I wonder what made the BOS attack him?