Military police officer pleads guilty in Craigslist robberies An Air Force staff sergeant has pleaded guilty to robbing people at gunpoint after posting ads on Craigslist and then meeting up with the prospective “customers” in Arlington and Fairfax counties.

Deshawn Derr, 25, admitted that he and another man would pretend on Craigslist to be selling iPhones, tell prospective buyers to bring cash to a meeting and then rob the customers at gunpoint.