Two teenagers have been charged with murder after a Griffin man was found dead in a vacant lot early Monday.

An autopsy will be conducted Wednesday on Kevin Donald Harmon, who was found in a lot in the Runaway Lake subdivision, according to Capt. Tony Ranieri with the Spalding County Sheriff's Office. Investigators have not yet said how Harmon, 25, was killed.

Police have arrested two suspects, who each have been charged with murder and armed robbery, Ranieri said. Todd Eric Jones, 17, and Justin Cody Tuggle, 18, both of Griffin, are being held in the Spalding County jail. Monica Diane Martin, 30, was also arrested and charged with making false statements.

Additional arrests are expected, Ranieri said.