After Kieran was imprisoned for his crimes, he was told that his lawyer wants to talk to him on the phone. On the phone, he hears someone with The Killer's voice saying "Hello Kieran. Who told you, you could wear my mask?" much to Kieran's clear surprise, implying that there is another killer on the loose that he didn't know about.
In prison, Kieran, hearing a noise, looks up to see a person in the Killer's costume laying face down in the ventilation vents above him, looking down at him. Nervous of what the killer will do, Kieran tells the nearby security guard that he needs to "use the can". The security guard refuses while writing notes down on a pad nearby.
The Killer slightly opens the vent, but the guard hears the vent creaking. When he turns around in surprise, the Killer jumps out of the vent and murders the guard by twisting/snapping his neck 180 degrees, while Kieran watches in shock from inside his cell, amazed at the killer's superior brutality.
The Killer then takes the guard's keys, lets Kieran out and confronts him. "Alright. You kept your word. So you're going to tell me who you are?" Kieran asks. The Killer stares silently for a few seconds before giving his response: swiftly gliding the hunting knife across Kieran's throat, slicing it open. A horrified Kieran gurgles while blood spurts out.
Completely dumbfounded and full of bewilderment, a gurgling Kieran drops to his knees and falls to the ground. As Kieran clutches his neck, bleeding profusely, he sees that the prison guard dropped his gun.
He desperately attempts to crawl toward the gun, but the Killer pins him down. The Killer then strikes the knife down into Kieran in the back of the neck, twisting it, finishing him off. He then turns Kieran's corpse over and admires his work as Kieran's corpse continues to bleed out.
The killer wears the black rain jacket as well as the Brandon James mask to conceal their true appearance.
|Crime Scene Photo||Victim||COD||Episode|
|Prison Guard||Snapped/Twisted Neck||Halloween|
|Kieran Wilcox||Throat slit and stabbed in back of neck||Halloween|
- The Third Killer is, so far, the only killer in the Scream franchise to never have their identity revealed.