James Von Brunn’s writings don’t sound very “right-wing.” On June 10, the nation tragically witnessed a memorial dedicated to commemorating an atrocity become the site of yet more death. Just before 1 p.m., longtime neo-Nazi James Wenneker Von Brunn entered the Holocaust Museum on the National Mall and opened fire in an attempt to complete the Final Solution his hero had left tentative, an omission Von Brunn dubbed “Hitler’s biggest mistake.” As former Defense Secretary Bill Cohen wandered the museum grounds, Von Brunn killed Stephen T. Johns, a black security officer, then was shot himself. As of this writing, the...