Zane Covington, 53, of Brentwood, was charged with a single count of sexual exploitation of minor, a federal offense that carries a mandatory minimum sentence of 15 years in prison. The criminal complaint says a federal task force officer with Homeland Security Investigations verified multiple videos showing Covington inappropriately touching two "pre-pubescent girl(s)" and found other child sexual abuse videos online that he appeared to have searched for using "terms associated with child pornography files."