Police Chief Gene Wilson identified one suspect as 36-year-old Sylvester Leon Henderson.
The incident began just after midnight Tuesday when Conyers police responded to a report of a fight on Villa Pines Court. They found blood at an intersection, but no victim.
Witnesses told police they saw a man being put into the back of a car before police arrived.
Hours later, police said an "acquaintance" led officers to the body of Derrick Bernard Brown in a kudzu patch in Lawrenceville. The cause of death will be determined by the Rockdale County coroner.