Authorities in Virginia are still totally stumped about who recently spent three weeks shooting at military buildings around the Northern Virginia area, including the Pentagon. (So far, all we really know is that the shooter or shooters have “a familiarity with the Northern Virginia area” and “may have experienced a significant personal crisis within the past several months,” which narrows it down to somewhere around a million people.) To help out, the Department of Justice is chipping in a reward of up to $20,000 for information leading to a conviction in the case. To date, authorities — which include operatives from the FBI, Fairfax County Police, Pentagon Force Protection Agency and Prince William County Police — are investigating five shootings, which they say are linked.