The Witch Wolf
Erica forwards the video onto Mercer.
Erica tracks down all three men, and confronts and kills two of them before freeing her dog. She struggles with the third attacker who gains the upper hand just as Mercer arrives.
As Mercer attempts to arrest the attacker, Erica retrieves her weapon and prepares to execute him.
Mercer persuades Erica to lower her gun, but after looking into her pleading eyes, hands her his own gun to use instead, and Erica shoots the attacker dead.
Mercer then insists that Erica wound him with her gun, which she does, allowing them to frame her attackers for the vigilante killings.