The man returned the smile, it was short, nothing special, and he waited for her to pass by just slightly. When she was only a foot or two past, he heard the sound of the gun go off just barley. It was silent, you had to be listening for it.
The dart would hit the girl, it would take only a few seconds for it to work. They'd chosen this area, because there were no cameras. No corner stores, no traffic cameras from this angle. When the girl would drop, the man would step up behind her and catch her. It would only be a few more seconds until the van pulled up, and the man would ease the witch inside. The door would slam behind them, and they'd be gone.
It would be a few hours, but she would wake up within the compound, guards ready to act if anything went wrong.