It was previously established that he'd already done with this with
"He stood up and threw the woman over his shoulder. He started back
toward the city, talking around his captive." And so the rest of that
conversation is happening with the woman already on his shoulder.
Cassidy sighed "I am not going to stand here and debate philosophy
with you. Suffice it to say that I think Harlan is a spy working for
the cops. He's a traitor. He's not an innocent. Now goodnight." He
-picked up the woman, threw her over his shoulder, and trudged off.
+trudged off.
Alfie stared after him, speechless.