Gwinnett authorities arrest 2 suspects in separate child exploitation cases By FOX 5 Atlanta Digital Team Published article Junior Demas, left, and Marcus Gamble, right, were arrested by Gwinnett County deputies in connection to a child exploitation case. (Photo: Gwinnett County Sheriff's Office) GWINNETT COUNTY, Ga. - The Gwinnett County Sheriff's Office said two child exploitation investigations netted arrests in Gwinnett County. Authorities said Marcus Gamble was arrested on March 31 and accused of obscene internet contact with a child and two charges related to possession of material depicting a child sexually. In a separate investigation, authorities said Junior Demas was arrested on April 1 and charged with three crimes, including obscene internet contact with a child and attempting to commit child molestation.