Base spokesman Timothy Flack declined to discuss the circumstances of the shooting because the investigation continues, the Herald reports. But Grand Forks County Sheriff Bob Rost and Becky Ault, director of the 911 dispatch center, have confirmed to the newspaper that as the shooting unfolded, deputies were told that Hullman was confronting Air Force security and brandishing a handgun on a street on the base.
Hullman, 36, graduated from high school in San Antonio, Texas, and had been stationed at Grand Forks since 2009, the Herald reported.
About 1,200 active-duty airmen are stationed at the base.
More broadly, how common are crimes committed on military bases? Not very, Slate reported in 2009, not long after a shooting spree in Fort Hood, Texas. A trial for Maj. Nidal Malik Hasan in that case is expected to start next month.
A 2009 study that examined the case of six soldiers from units at Fort Carson, Colo., who committed homicides over 12 months, found that soldiers with more combat experience — and whose units had suffered more casualties — were at greater risk than other soldiers of developing mental illnesses and committing crimes.