An off-duty Atlanta officer allegedly breaks into a neighbor's home and is killed after shooting at the homeowner

An off-duty Atlanta Police Department officer was shot by one of his neighbors after he allegedly broke into a home near St. Andrews Golf Club in Douglas County, Georgia, early Friday morning, officials said.

The officer, identified as Aubree Horton, had been with the Atlanta Police Department since 2015 and was most recently with the fugitive unit, the department told Fox News Digital.

According to FOX 5 Atlanta, Horton was also honored with the Investigator of the Year award late last month.

“We are working closely with the Douglas County Sheriff's Office to learn more about what happened as they investigate the incident,” the department said in a statement shared with Fox News Digital.

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Surveillance video showed Horton appeared to be having a “mental seizure or was under the influence of narcotics,” FOX 5 reported.

“Upon gaining entry, the homeowner pulled out a firearm in self-defense and shot the individual,” Capt. Jon Mauney of the Douglas County Sheriff's Office told reporters, according to FOX 5.

“Upon gaining entry, the homeowner pulled out a firearm in self-defense and shot the individual,” Capt. Jon Mauney of the Douglas County Sheriff's Office told reporters, according to FOX 5. (FOX 5)

Horton lived just a few blocks from the house he allegedly broke into, the station reported.

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Neighbors were shocked.

Horton was shot after the homeowner opened fire in self-defense. (FOX 5)

“It's right here in your neighborhood and a golf community and a place where you really think something like this would never happen,” a neighbor told FOX 5.

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Investigators don't yet know why Horton broke into the house.