NORTON — The U.S. Forest Service is looking for the person or persons who spray-painted a message on the access sidewalk to the High Knob Observation Tower. According to Clinch District Ranger Michelle Davalos, someone spray-painted an expression of love on the walkway in recent days. In a photo released by Davalos Tuesday, the person or persons sprayed “Cory + Malaik” and a heart in red paint. “We need your help to prevent damage to public resources,” Davalos said.