HANDOUT PHOTO: Undated photo of John B. Geer with his daughters. On Aug. 29, 2013, Geer was shot and killed by a Fairfax County police officer as he stood in the doorway of his townhouse in Springfield, Va. AT POINT-BLANK range, a Fairfax County police officer a year ago fired one shot, killing an unarmed man standing inside his home. The man, John Geer, was distraught and had been drinking — his longtime girlfriend had moved out and called police when he threw her things into the front yard — but he held no hostages, brandished no weapons and, so far as we have learned, posed no serious threat either to police or to public order. (Mr. Geer did own guns, which he apparently told police.) Where are the rioters?