"It's a waiting game," said Bridget Anderson, who was with Anthony Hill for three years.
She has Google Alerts set up to send her emails whenever his name is mentioned in the news.
"Every time I open that email my heart is pounding," Anderson said. "It's hard just waiting."
Hill was shot and died March 9 at his apartment complex just outside the city. He was 26 years old.
Someone had called police to reported a male "acting deranged, knocking on doors, and crawling around on the ground naked," Dekalb County Police Chief Cedric Alexander told reporters shortly after the shooting.
Officer Robert Olsen, a 7-year veteran of the department, was dispatched.
"When the male saw the officer, he charged, running at the officer. The officer called him to stop while stepping backwards, drew his weapon, and fired two shots," Alexander said.
The chief said it appears Hill was unarmed.
Olsen was placed on administrative leave pending the outcome of an investigation, which was given to the Georgia Bureau of Investigation (GBI) to do. He has not been charged.
Hill's death sparked protests in Atlanta that echoed nationwide demonstrations around race, policing and excessive force. Olsen is white. Hill was black.
He joins a list of unarmed African-American men shot by white police officers: Michael Brown
in Ferguson, Missouri; Walter Scott
in North Charleston, South Carolina; Jonathan Ferrell
in Charlotte, North Carolina; and Christian Taylor
in Arlington, Texas.