An attorney says witness statements suggest a police officer in metro Atlanta could have retreated before fatally shooting a naked, mentally ill man.

DeKalb County police officer Robert Olsen shot 26-year-old Anthony Hill on March 9 while responding to a call reporting a suspicious person knocking on doors and crawling naked on the ground.

Hill's family said he suffered from bipolar disorder and had stopped taking medication.

An attorney for Hill's family, Christopher Chestnut, said witnesses indicate Olsen was about 180 feet from Hill when they first encountered each other. Chestnut said the distance shows Hill wasn't an immediate threat. The attorney says the officer should have had time to assess Hill's condition.

Chestnut says Hill walked toward the officer, who fired at close range.

Police declined to comment Wednesday.