Updated, 3 p.m.
Rogers, a sheriff's office spokesman, said no further leads development in the investigation and search at Hamilton Crossing Park, and authorities discontinued previous efforts.
Deputies, who have only a description of the gunman, will be on the lookout for the suspect as they continue extra patrols of the area, he added.
Updated, 2 p.m.
Law enforcement officers have left the park because they believe the gunman is no longer in the area, The Daily Tribune News reports on its Facebook page, citing Bartow Schools Superintendent John Harper.
Two schools in Cartersville are on a "heightened state of alert," but not official lock downs, as Bartow County Sheriff's Office authorities search for a robbery suspect, Schools Chief Dan Knowles said.
Sheriff's Sgt. Jonathan Rogers said a man pulled a gun on the victim in Hamilton Crossing Park near Highway 293 and Hamilton Crossing Road. The male victim fled, as did the suspect.
Elementary school officials are telling parents who call and inquire about the situation that students are not allowed to be alone while the incident is ongoing, but the facility's doors are open.
Cartersville Patch Editor Brande Poulnot's daughter, an 8-year-old second-grader, attends Hamilton Crossing Elementary School.