Sheriff's deputies served county jail inmate Samuel Moses Williams with more warrants alleging sexual assault of a child Monday in connection with an incident first discovered last week. Williams, 24, of Sulphur Springs was arrested by police for failure to register as a sex offender at his place of employment last Friday; he was also charged with two separate counts of aggravated sexual assault of a child under 14 years of age. During an interview at the county jail following his arrest, Williams admitted to touching the breasts and genitals of the children. In a related incident last Friday, deputies arrested 23-year-old Danyelle Anneice Carter for tampering with a witness after she threatened young girls who were thought to be victims of sexual abuse by her husband. The additional charges involved the same children, according to sheriff's investigators. Bonds for Williams now total more than a half-million dollars.