(Or at least had it in 1990-92; my quick search couldn’t find more recent data.) We’re talking here about generally accepted Department of Labor job categories, which are limited to legal occupations, are nationwide, and apparently exclude the military.
The answer is here; the homicide rate for this occupation was 30 times the average overall occupational homicide rate. Of course, none of these approach the nearly 2% yearly homicide rate racked up by this perfectly legal job.