One of the two Beavercreek police officers involved in the Aug. 5 fatal shooting of John Crawford III at a Walmart is back at work, the city's law director said Wednesday.

Beavercreek city attorney Stephen McHugh said Sgt. David Darkow has returned to work, while Officer Sean Williams remains on administrative leave.

Neither McHugh nor the Ohio Attorney General's Office has confirmed that Williams fired the shot that killed Crawford in the Beavercreek store after police said Crawford twice ignored commands to put down an air rifle pellet gun.

After showing a short portion of Walmart's surveillance video to Crawford's parents, Ohio Attorney General Mike DeWine announced Tuesday that a special Greene County grand jury will convene Sept. 3 to determine whether criminal charges are appropriate.

Williams, a nine-year veteran on the force, was involved in Beavercreek's first fatal police-involved shooting on June 27, 2010. Williams shot and killed retired Air Force Master Sgt. Scott A. Brogli, 45, after the man charged him and another officer while carrying a large kitchen knife. Brogli died from a single gunshot wound to the chest, as his 17-year-old son watched the incident unfold.

Beavercreek police were investigating a domestic violence call involving Brogli and his wife, who fled their apartment and drove away before police arrived. A toxicology report later indicated Brogli's blood-alcohol level at the time of the incident was 0.163 — more than twice the 0.08 legal limit for driving in Ohio.

On Aug. 30, 2010, a nine-member Greene County Court of Common Pleas grand jury determined Williams acted correctly and in self-defense when he killed Brogli.