A DeKalb County, Georgia, grand jury on Thursday indicted a police officer on charges of first-degree murder and making a false statement in the fatal shooting of an unarmed black man who was naked.

In March, Officer Robert Olsen killed 27-year-old Anthony Hill in his apartment complex in Chamblee, Georgia, about 14 miles from Atlanta. Hill, an Air Force veteran who had served in Afghanistan, was running naked in the complex at the time police arrived. His family said he had bipolar disorder, as well as post traumatic stress disorder.

Earlier this month, District Attorney Robert James announced they would seek murder charges. And on Thursday, an arrest warrant had been issued for Olsen, Fox 5 Atlanta reported.