Lithonia Police Chief Willie Rosser submitted his resignation today, effective immediately.
Rosser, 53, did not say why he he was quitting.
"We cannot measure the value that Chief Rosser has played in his tenure," said Lithonia Mayor Tonya Peterson in a statement. "He has been a solid figure in this city over the last six years and we have greatly benefitted from the contributions that he has made."
Rosser was appointed chief in 2004 by the Lithonia's former mayor, Darold Honore. He previously served as Lithonia's code enforcement officer.
In April 2008, then-Mayor Joyce McKibben fired Rosser for alleged violations of city policies. He was reinstated soon after by the Lithonia City Council.