She first appeared in "Punisher War Zone" #7, as a police officer attempting to catch a serial rapist plaguing Central Park. Frank Castle / The Punisher is in the park as well, taking down targets of opportunity as he also hunts for the rapist. They both confront the criminal, but he escapes. Lynn and Frank team up to track him down, resulting in a series of confrontations with several international assassins. The rapist ultimately dies in a shootout that leaves Lynn wounded. While being treated, she plants a kiss on Frank. The fact that she worked with the Punisher becomes common knowledge among her colleagues on the force.