Factual error: After Hunter shoots the serial killer on the roof, the camera turns to catch her preparing for her next shot by pulling the hammer back. Since her pistol is a semiautomatic, the hammer would already be back and ready to be fired.
Factual error: When Helen is launching the video that shows the girl turning into worms (the killer's next victim later found at the dumpster), typing "tomorrow.avi" as she does would have returned an error in Linux. She should have typed "call tomorrow.avi" to launch the video. (00:43:00 - 00:44:00)





Answer: She lives to shoot the killer thereby saving Helen. She only plays dead. Or was knocked unconscious. After all she was shot more than once. The vest may have saved her life but it didn't stop her from being out of action for a time.
ChristmasJonesfan