Houser's mother said she believed the couple used drugs around the children, and would take turns disappearing for multiple days, possibly staying with their drug dealer.
The operation saw FBI agents and task force officers working together to set up stings in hotels, casinos and truck stops, as well as on street corners and websites.
At least one of the victims' family members -- besides their mother, who made the report to police -- knew about the alleged abuse, the victims said, but didn't believe Jones was committing the acts.