Interrogate that boy
You gruffly slam the spy against the wall and demand information, NOW!

He says he doesn't know what you're talking about!

You give him a firm slap across the face to make him more willing to talk. He must be a pretty weak spy because he starts spilling the beans.

He says he was hired by DOUG K. HOOTENANNY, leader of a massive CRIME ORGANIZATION in this city! Practically owns the place, ya know? Got paid a good thousand dollars to spy on ya n' report back to one of their agents who'll be waiting in a car few blocks 'round this corner. Said the car had a big letter H on it, you'll know when ya see it.

Thank him for the information all cool like