"SO THIS KID'S THE REAL KILLER?" Sheriff Stilinski questioned as he stared down at Matt's picture in the yearbook. Well, technically, he wasn't the sheriff anymore.

Stiles nodded, from his seat, looking up at Scott and April who were standing next to him. "Yeah."

"No," the man said, shaking his head in response. This caused the three teenagers to look at him in shock, pleading with their eyes for him to believe them. If he didn't more people could and would die.

"Dad, come on," the younger Stilinski begged, standing up from his chair and pushing it back. "Everyone knows that the police look for ways to connect victims in a murder, okay? So, all you have to do is, like, look through their transcripts and figure out which class they all had in common."

The ex-sheriff sighed, "Yeah, except for the fact that the rave promoter, Kara, wasn't in Harris's class."

"All right, okay, you're right, sorry. Then I guess they dropped the charges against him?" He already knew the answer to the question, but he was just trying to get his father to see the light.

"No, you know what? They're not dropping the charges," the father told them, and Stiles whipped around to give his two best friends an 'I told you so' look. "But that doesn't prove anything. Scott, April, do you two believe this?"

The blonde girl nodded as the McCall boy answered, "It's really hard to explain how we know this, but you just gotta trust us. We know it's Matt."

"Yeah, he took Harris's car, okay? Look, he knew that if a cop found tire tracks at one of the murders, and that if enough of the victims were in Harris's class, that they'd arrest him."

Noah gave in, looking at his son in question. "All right, fine. I'll allow the remote possibility, but give me a motive. I mean, why would this kid want most of the 2006 swim team and its coach dead?"

"Isn't it obvious?" Stiles exclaimed, and all three of the other people in the room raised their eyebrows because it most definitely wasn't. "Our swim team sucks! That haven't won in, like, six years. Okay, we don't have a motive yet. I mean, come on, does Harris?"

"What do you want me to do?" the Stilinski man quizzed. 

Surprised that he was agreeing to help them, Stiles looked back at April and Scott for assistance. The Sharpe girl leaned forward. "We need to look at the evidence."

"Yeah," Noah replied, but he wasn't really surprised. He knew that they would ask something difficult of him. "That'll be in the station where I no longer work."

"Trust me, they'll let you in," Stiles said, and April furrowed her eyebrows at him. Why would they let him in?

The older Stilinski scoffed, "Trust you?"

"Trust..." Stiles trailed off before turning to the boy and girl behind him. He pointed to them and looked back at his father. "Trust them?"

"Them, I trust," the man said, nodding in agreement, and the three teens felt like cheering and jumping up and down.

So, he drove them to the sheriff's station, and when they walked in, the deputy at the front desk raised her eyebrows at them. "It's 2:00 in the morning." April's eyes widened at that. She hadn't realized that it was so late.

"Believe me," Noah told her, shooting her a pleading look. "I wouldn't be here if it wasn't extremely important."

"We'll look at the hospital stuff first, okay?" Stiles whispered to his friends as his dad worked on convincing the night guard to let them in at the ungodly hour. 

Furrowing his eyebrows, Scott questioned, "Why?"

"Because all the murders were committed by Jackson, except for one, you remember?"

"The pregnant girl," April finished, nodding her head in realization. Then, she remembered the woman's name. "Jessica."

"Yeah. Since Matt had to kill her himself, somebody from the hospital could've seen him," the Stilinski boy explained. If someone from the hospital saw him or they caught him on camera, then maybe they could get a positive I.D. 

Looking back up to the counter, they saw the deputy nod in agreement, gesturing them to one of the rooms. The ex-sheriff smiled gratefully at her. "Thank you. Let's go."

"I don't know guys," Noah told them once they were watching the footage from the hospital from that night. "I mean, look at this. There was a six-car pileup that night. The hospital was jammed."

"All right, just keep going. Look, he had to pass one of the cameras on that floor to get to Jessica, okay? He's gotta be on the footage somewhere," Stiles informed his father.

While the family was bickering, April noticed something on the screen. A boy with a black leather jacket that looked remarkably like Matt was walking away from the camera. Scott spotted it as well. "Oh, hold on, stop! Did you see that? Scroll back."

"That's him!" the blonde girl exclaimed once the man rewinded the footage. Even though they couldn't see his face, she was positive that it was him. "That's Matt."

"All I see is the back of someone's head," the Stilinski man said once he paused it. April had to admit that she would be skeptical as well if she had only seen the kid in an old yearbook.

"Matt's head, yeah," Stiles added, rolling his eyes. "I sit behind him in history. He's got a very distinct cranium. It's weird."

The man raised his eyebrows at his son who was making absolutely no sense at that moment — talking about craniums. "Are you crazy?"

"All right, fine, then look at his jacket, huh? How many people do you know who wear leather jackets?" the younger Stilinski quizzed. His argument was not very good, though.

"Millions," Noah replied. "Literally."

April nodded along to what he was saying. Although being very clever sometimes, Stiles's points that day were not very good.  "I can name at least twenty that I know personally."

"Oh, like you know twenty people."

"Okay, can we scroll forward?" Scott asked, interrupting his friends' fighting as the Sharpe girl glared at Stiles. "There's gotta be a shot of him coming at one of the cameras."

The man sighed but kept the tape playing nonetheless. When Matt popped up again, it was still only his back. That didn't stop the short-haired boy to yell, "Right there! Stop! Stop! See? There he is again."

"You mean there's the back of his head again," the ex-sheriff corrected. How the hell did the Daehler boy always manage to be walking away from the freaking cameras?

"Okay, but look," Stiles told them, pointing at the screen. "He's talking to someone."

He paused the footage so that they could get a clear look at who Matt was speaking to. Scott's eyes widened when he realized who it was. "He's talking to my mom."

However, April's eyes were drawn to the head poking out from behind the wall. She recognized that flowing strawberry blonde hair anywhere.

"Is that my aunt?"

"Scott, April," Noah said, turning their attention away from the screen. "Call them and see if they recognize him. Maybe we can get a positive I.D."

The blonde nodded quickly. "Okay." She pulled out her phone and stepped to a corner of the room so that Scott could talk to Melissa at the desk.

"Hey, everything okay?" Ashley questioned when she picked up the phone. Her voice was sleepy but alert, so she the call must've woken her up. The fact that her niece was calling her at two in the morning was a little concerning.

"Yep. Everything's fine," the Sharpe girl responded, assuring her aunt that no one died or anything. "I just needed to ask you a question."

She heard her aunt groan over the phone. "And it couldn't wait until the morning? I don't get to be this pretty by not sleeping, you know?"

"Yeah, yeah. Anyway, I was wondering if you were at the hospital the night when there was that six-car pile up," April asked, hoping that that would be enough information.

"Yeah, I was," the woman on the other side answered, "I was bringing Melissa dinner because she was running a long shift and wouldn't get to eat. Why?"

Praying desperately that her aunt had a better memory than she usually did, the blonde girl quizzed, "Do you remember seeing Melissa talk to a teenage boy about my age?"

"She talked to a lot of people that night. Anything more specific?"

"Um, he's kinda tall, and he's got dark hair," the Sharpe girl described, unsure of how to explain Matt's looks. "I don't know. He looks like a normal teenager."

"Very helpful," the Sommers woman commented sarcastically, and April could practically feel her eyes roll.

Stiles, picking up on what his friend was trying to do, shouted to her in hopes that his voice would carry through the phone. "He looks evil."

"Stiles says he looks evil," the blonde told her aunt with a shrug even though she knew the woman couldn't see it. "I'm not sure if that helps."

"It does not," Ashley informed her.

April ran her free hand through her hair, looking to Scott for another way to describe the boy to Ashley. When she saw the McCall boy taking a picture of Matt's yearbook photo, she walked quickly over to the desk as well.

"I'm sending a picture to you," the girl said, and she heard Ashley remove the phone from her ear. After a moment, she asked, "Did you get it?"

The strawberry blonde woman answered, "Yeah, I did. I remember him. Melissa stopped him because he was tracking mud in the hall. What's happening?"

"Just give me one second," April told her aunt, and then she brought the phone down and held it at her hip. Turned out that Scott had just found out the same thing from his mother.

She leaned over the desk to watch as Noah opened and moved a bunch of files around. "We've got shoe prints alongside the tire tracks at the trailer site."

"And if they match, that puts Matt at the scene of three murders," Stiles pointed out. "The trailer, the hospital, and the rave."

"Actually, four. A credit card receipt for an oil change was signed by Matt at the garage where the mechanic was killed."

"When?" Scott asked.

The ex-sheriff looked to his son with a nod. "A couple hours before you got there."

"All right, Dad." The younger Stilinski questioned curiously and anxiously, "If one's an incident, two's a coincidence, and three's a pattern, what's four?"

"Four's enough for a warrant."

As Stiles cheered silently, the older man turned to Scott. "Scott, call your mom back, see how quick she can get here. If I can get an official I.D., I can get a search warrant. April, is your aunt still on the phone?" She nodded and handed her cell to him. "Stiles, go to the front desk. Tell them to let Ashley and Melissa in when they get here."

"On it."

Noah then held the phone up to his ear and began speaking to Ashley. He and Scott were speaking at the same time, and April sat down in one of the chairs behind her. She bounced her foot up and down and ran a hand through her hair. If they could do this, maybe all the murders would stop.

"She's on her way here," the McCall boy informed the room once he got off the phone, and the man was saying goodbye to the Sommers woman just as he said that. He placed April's cell on the table but froze when something caught his eye. "Sheriff?"

They all turned to see Stiles walking back in the door, but what made the blonde's eyes widen in fear was the sight of Matt trailing behind him, pushing him along with a gun.

"Matt? It's Matt, right?" the Stilinski man quizzed carefully with his hands in the air as his son joined Scott's side. "Matt, whatever's going on, I guarantee you there's a solution that doesn't involve a gun."

"You know, it's funny you say that because I don't think you're aware of just how right you are," Matt informed him, and April's eyebrows furrowed in confusion until realization hit her. He was talking about the Kanima.

Noah sighed, "I know you don't wanna hurt people."

"Actually, I wanna hurt a lot of people," the Daehler boy informed him. "You four weren't on my list, but I could be persuaded. And one way is to try dialing somebody on your cell phone like McCall is doing." The blonde turned to Scott just in time to see his hand fly out of his pocket. "That could definitely get someone hurt. Everyone." He gestured for them to put their phones on the table so that he could see them. When they didn't move, he yelled, "Now!"

The Sharpe girl flinched while the three males placed their devices next to hers on the desk. Next, he made them go into the room with all of the cells and handcuff the sheriff to a pole.

"Tighter," Matt demanded when Stiles just barely put the handcuffs on his father.

Noah turned to his son with serious and worried eyes. "Do what he says, Stiles."

Reluctantly, the younger Stilinski squeezed the cuffs tighter around the man's wrist. Once Matt was happy, he gestured for the three teenagers to walk in front of him. They did as they were told, but once Scott passed a hallway, he stopped in his tracks.

Curious as to what he was looking at, April leaned forward to look down the hallway. She gasped when she saw three dead deputies with blood and puncture wounds covering their uniforms. The red substance was coating the walls as well. 

"What, are you gonna kill everyone in here?" the werewolf questioned in shock. The Sharpe girl was trying to hold the contents of her stomach in as the pungent smell of blood reached her nose.

"No, that's what Jackson's for," the boy with the gun said. "I just think about killing them, and he does it." He pushed Stiles forward with the weapon, and they kept walking before they could notice that one of the men was still breathing.

Then, he watched as Scott and April put every piece of evidence against him through the shredding machine while Stiles deleted all of the computer files.

"Deleted." The computer beeped just as the last of the files went in. "And we're done. And, so, Matt, since all the people you brutally murdered deserved it because they killed you first, whatever that means, we're good here, right? I'll just get my dad, and we'll go, you know, continue on the whole vengeance thing. Enjoy the Kanima."

All of a sudden, the headlights of a car shone through the window. "Sounds like your mom's here, McCall. Or is it April's aunt?"

"Matt, don't do this," Scott begged, whipping his head toward the boy. April remained silent, frozen in fear, knowing that even if it was Scott's mother, Ashley would be there soon too. "When she comes to the door, I'll just tell her to leave. I'll tell her we didn't find anything"

The door to the station opened, and all of their heads turned to the direction that the sound came from.

'If you don't move, now, I'm gonna put a bullet right between those pretty blue eyes over there, and then I'm gonna kill your mom," Matt threatened, gesturing to April who gulped in fear.

Scott moved quickly toward the door that was between them and what could be his mother or April's aunt. Matt ordered, "Open it."

"Please," the blonde pleaded, looking to the Daehler boy as her voice cracked. Whoever was on the other side of that door was going to meet an untimely fate.

Ignoring her, the boy with the gun repeated, "Open the door."

April felt her heart stop and her breath hitch in her throat as her best friend reached for the handle. The door swung open slowly, and the Sharpe girl let out a relieved breath when she saw who it was.

Derek.

"Oh, thank God," Scott muttered, but just as he said that, the man fell forward and landed flat on the ground to reveal the Kanima standing behind him.

AUTHOR'S NOTE

some parts of this were really rushed, and i'm sorry about that. it's just really late, and i wanted to finish this before i went to sleep.