I think that Boyd was simply saying that “she acted as his personal bodyguard” during that incident, not that she in fact *was* his personal bodyguard as her profession.
Seriously, I’m not trying to nitpick. From the context, it sounds like she *may* just have been, to use Boyd’s term “acting” as his bodyguard during that incident, and is therefore a “hero,” not that she was on the church payroll as his personal bodyguard.
She is described as a “volunteer church security guard” — that doesn’t sound like someone on staff as a “personal bodyguard,” frankly.
It’s a minor point, but I’d rather have the truth rather than conjecture.