You call Gibbs and tell him what you found. Sceptical, he decides to check out the pizza parlours anyway.
He calls you a few hours later and tells you that they found that all the pizza parlours were attached by underground tunnels. The pizza parlours were helping a man named Gerry Ryanson sell girls into the sex trade. They were shipping the girls underground.
Gibbs and the rest of the team caught up with Gerry at one of the pizza parlours and arrested him on the spot. Gerry admitted to killing the girl but completely denied the rest.
Positive that he was a part of this, Gibbs refused to believe him.
Gibbs congratulates you for your good work.
You Win.