Awesome chaps! I like that rivalry going on between Knuckles and Shadow

i wonder who it could be im not going to say shadow just yet

Great start dude

But remember, the killer is probably smart, so he/she could've cut some of Shadow's hairs of when he was sleeping or something.

Chapter Three is awesome. I love the rivalries and you write so well. Good job, I'm hanging out for Chapter Four

Chapter Four v2: Rivalry (by LuigiMan)

“Well, Shadow, what do you have to say about this?” Knuckles thrust out his palm, revealing a few black hairs. Shadow stared at Knuckles.
“What?”
“I found these in the bathroom! You obviously left this behind when you murdered Storm!”
“What are you talking about? I didn’t kill anyone.” Silver approached from the other room.
“What is it this time?”
“I found even more evidence proving Shadow guilty! Take a look at these.” He displayed the black hairs in an almost pompous way, confident in his findings. Silver sighed impatiently.
“Where did you find these?”
“In the bathroom,” Knuckles replied eagerly, “where Storm died!”
“Did you ever consider,” said Silver, “that Shadow left these when he was actually using the room’s – er – facilities?” Shadow shook his head disapprovingly and walked away, followed closely by the persistent Knuckles. They entered the foyer, where they ran into Sonic, on his way upstairs.
“Sonic! Come down here,” said Knuckles, “I want to show you something.”
“More proof against Shadow?” Sonic joked.
“Yes!”
“Er – oh. Duh… okay, show me.”
Knuckles held the hairs so close to Sonic’s face that he began to back away slowly. Shadow sat on the stairs with his head in his hands.
“Guys, this is ridiculous, can’t we just –“
“Hold on, Shadow, I want to take this seriously for a moment. Knuckles, where did you find these?”
“Under the toilet seat. I figured, since Storm was found in the bathroom…”
“Um…”
“You too? Well, this is all the proof we have, so I say we should use this. It’s better than nothing…”
“Actually,” said Sonic, “it isn’t the only proof. I found a cloak in the kitchen after Tails died, and it had a knife in it.”
“What?!” Shadow exclaimed, bolting up.
“Yeah, I just thought the killer must have been forgetful or stupid or something –“
“Well, then, that practically confirms it!” Knuckles exclaimed. “If there’s anyone here who’s forgetful, it’s Shadow!
“You have to be kidding me,” said Shadow. “I’m not forgetful, I lost my memory! Now quit pointing fingers before it gets you into trouble.”

“Get me into trouble, eh? This,” he held out the black hairs, “is more likely to get YOU in trouble. Murderer.”
“What did you call me?”
“Murderer! You killed two people already! I’m going to put you behind bars! It’s people like you who make this world a mess, with its corrupt communities and paid assassins!”
“You don’t know what the heck you’re talking about! I’m not being paid to kill people!”
“Oh yeah? I’m willing to bet Dr. Eggman is fudging the money in secret so you can wipe out his enemies for him! First Tails, then Storm… I bet Sonic is next!”
“Hold on, hold on, people!” Sonic burst in. “What’s all this fighting about? Knuckles, don’t blame Shadow for the murders if you can’t prove it’s him!”
“But I already have!” said Knuckles, holding the hairs out again. Shadow threw a punch, knocking Knuckles to the floor with one hit. Knuckles retaliated with a swipe of his foot, tripping Shadow.
“Guys, stop!” Sonic shouted, but it was too late. Knuckles and Shadow were going at each other like a pair of professional wrestlers. Silver entered the foyer to see what the commotion was about.
“What’s going on in here – hey, why are you fighting? Quit it! This is about the hair, isn’t it?”

Knuckles took a boxer stance with his fists blocking his face, swinging every few seconds. Shadow jumped over him and kicked him in the back of the head, sending Knuckles flying into the staircase. He quickly recovered and released a powerful punch on Shadow’s face, followed by a sharp uppercut. Shadow kept his footing and grabbed Knuckles by the arm, swinging him around and letting go. Knuckles landed with a loud crash on a mirror, creating a large crater in the glass. Bleeding slightly, he struggled to stand up, swaying from side to side with dizziness. Silver stepped between him and shadow.
“Guys, stop it! This is insane!” Shadow ignored him and promptly jumped into the air, landing on Knuckles with his foot. Knuckles jumped out of the way just in time for Shadow to crash into the broken mirror. Sonic held Knuckles back just as he was about to launch an attack, pinning him to the wall. Silver grabbed Shadow’s arms and held them against his back.
“Guys,” Sonic panted, “this… is stupid. Stop… fighting! We will… consider your evidence… Knuckles… but we can’t confirm anything… yet…”
He released Knuckles, who moodily left the room. Silver let go of Shadow’s arms; he immediately dragged his feet upstairs. Sonic and Silver both leaned against the wall.
“Those guys…” said Silver.
“Yeah… so, who do you suspect?”
Silver stared at the floor. “Nobody, yet. I-”
Silver was interrupted by a loud shriek from upstairs. He and Sonic raced to the bedroom to find Jet lying in a pool of blood, Shadow standing over him.

that chapter was good the original chapter should be good to