A/N: So... Someone reviewed recently and asked for me to "cut down" on the creepy bits with Naito. My answer to that is: look at the genre of this fic. It's under horror/crime. I'm kind of obliged to keep the creepy. Besides, I already have the plot written out and I need to have those bits in there for this fic to make any sense. Believe me, when all is revealed about Naito, you might like the creepy bits. Anyways, that's all for now. Please read, review, and enjoy. :)

Disclaimer: I do not own the TMNT.

"Oi! Don't push, Mikey!"

"Then move your fat shell, Raph, I'm trying to watch the news!"

"When d'ya ever watch the news, numbskull?"

"Since Don bet me twenty bucks that I couldn't sit through two hours of watching weather forecasts and stock changes!"

The red masked turtle, now standing next to the large stack of television screens rather than in front, stared at his brother. Mikey was sitting on the couch with his arms crossed over his plastron. He gave Raphael an annoyed look. Raph frowned. "Don made a bet like that? Why would he pay ya' fer' somethin' so… stupid?" Raph asked. Mikey shrugged and glanced at the main screen. "Don's weird sometimes." Was the only answer he offered. Raph sensed something else at work. Don wasn't weird just to be weird. Usually there was a reason to his weirdness. He turned to the purple masked terrapin who sat at work at his computers. He strode over, ignoring Mikey's complaints as he passed front of the wall of television sets. Raph leaned heavily on the back of Don's chair. The young genius didn't seem to notice as he was deeply concentrated on his work. Raph slapped his hand down on Don's head, eliciting a surprised shriek from the usually quiet turtle. Don stiffened and he relaxed as heard Raph's throaty chuckle. Don turned the chair about, glaring at his brother. "Yes, it's all very funny, Raph. Can't you see that I'm working here?"

Raph smirked. "Yeah. I can see that. I have a question though, Donnie. Why'd you pay Mikey t'watch some weather channel and that stock change crap?"

The genius chuckled and swiveled back to his computers. "He kept asking me stupid questions about making him some wings or something of the sort. He wouldn't stop. He even gave me a color scheme and some feathers from an arts and crafts store. I had to get him to shut up. You know how he gets. Plus, I'm investing in some stocks. Pizza doesn't pay for itself and neither does my equipment." Don explained as his eyes flicked over the computer screens. Raph frowned. "Stocks? Don't get me wrong, brainy, but that sounds like a bad idea. Yer' gonna' lose out on yer' investments." Raph said as he moved to stand next to Don. "Why don't you just take a job as an IT guy or somethin' if you're in such dire need of money?"

Don laughed at that and typed away on his keyboard. "Raph, if I can develop a genetic code to stabilize the mutagen in our system, successfully too, I'm pretty certain that I can successfully invest and make money on the stock exchange." Don said with a confident smirk. Raph rolled his eyes. "Yer' smart, but ya' can't predict the future, Don. Yer' gonna' make us go broke." He said with a shake of his head. A flash of movement caught the red masked turtle's eye and he turned. "Hey, Leo, can ya' talk some sense into this one? He's babblin' 'bout makin' money off the stock exchange. I think he's just gonna' make us broke."

The blue masked terrapin, who had just come down from his room, frowned and approached. He had just been meditating and was unaware of what was going on. He had been drawn out of his meditation by a particularly loud and high pitched sound, which had probably been Donatello. "What's this about going broke?" He asked in a concerned tone, placing a hand on the desk and leaning on it casually. His gray eyes caught Donatello's annoyed expression. Don shook his head with an exasperated sigh. "Raph's just overreacting. I'm gonna' invest in some stocks and try to make some money to fund some of the techno-stuff we've got around here."

Leo glanced at Raph and back to Don. Raph shrugged. Leo sighed and pinched the bridge of his snout. "Why stocks? Why don't you just get some sort of online job, Donnie? That seems more your style than investing in random corporations."

Don shook his head. "I'm not interested in working some dead end job for the next ten years, Leo. I'll be miserable. I'll be irritable. We've been over this scenario before." Don replied. Leo straightened and stretched his arms. "Well, okay then. Just be careful and don't make too many bad decisions. We don't have that much money to begin with." Don nodded. "Don't worry; I'm using my own savings." He added. Leo looked thoughtful for a moment. He then smiled and clapped Don on the shoulder. "Oh. Well in that case, there's no need for us worry. You can make as many bad decisions and be as careless as you want." Raph snickered at that and Don blanched before sputtering out a reply. "I know what I'm doing, guys!"

"Last time I heard that, you blew up the fridge and we had take-out for three months." Raph pointed out. "Oh come on, I was like ten." Don sighed. Leo grinned at Raph. "I was thinking more about the time he broke the entire box of stink bombs that Mikey had saved up."

"Oh yeah, I remember that, the lair stank for weeks!" Raph chuckled. Don gave them both an irritated look. "That's the thanks I get for all the cool stuff down here, huh? I'll make plenty of money off of this, just watch."

"Well, if you're so sure, how about a little bet?" Raph interjected with a sly grin. Don raised an eye ridge. "I'm already stuck in a bet with Mikey, Raph."

The red masked terrapin grinned at that. "Well, if you're so certain that you'll lose…" Don shot him a glare and Leo chuckled. "Fine then. How much?"

"Fifty."

"Fifty?!"

"Oh, sorry, bro. I meant sixty."

Don's gaze narrowed. "You're evil. And you, Leo? Are you going to demand a bet as well?" Leo smirked. "I'm not that bad, Don. It wouldn't be right to take your money when you're broke." Leo kindly declined. Don gave him a look. "You guys are jerks."

"I'm TRYING to watch the news here!" An irritated Mikey called from the couch. Leo glanced at his youngest brother incredulously. "He's watching the news?" His voice hinted his surprise. "Don paid him." Raph replied, heading towards the kitchen before flicking the back of Don's head. The purple masked turtle shot him a look and turned back to his computer. Leo followed his red masked brother. "Why?" He asked. "Mikey was bothering him about wings or somethin'." Raph replied with a yawn.

"Wings."

"Yeah. Mikey's weird."

"Explanation enough, I suppose."

Raph opened the fridge and retrieved a beer. Leo shook his head at the sight of the beer and grabbed himself a bottle of water before closing the fridge. He had given up on telling Raph that drinking was bad. Raph never listened when he did anyways. Leo watched his brother down a swig of liquor and hid his disgust. He would never understand how Raph could drink that foul tasting liquid. Raph glanced at him and frowned suddenly. Leo frowned in response. "What?"

"Yer' missing a katana."

Leo furrowed his brows and reached over his right shoulder with his free hand. His hand brushed up against a hilt. He reached over his left shoulder and met nothing but air. He stiffened. Where was his katana? It struck him like a heavy blow. He had forgotten it. Forgotten it in that alley, stuck in that man's forehead and covered in blood and bits of brain matter and splinters of bone. Leo swore under his breath and dropped his water bottle. He hadn't even thought of the killings he had undertaken on his moonlit walk since his brothers had woken up.

Raph stared at him, lowering the beer bottle from his lips. "Leo, you okay?"

"Awwww man! What now?" Mikey's voice rang out, catching everyone's attention. Their heads turned towards Mikey. "What's wrong, numbskull? Did Don already lose all his cash?" Raph asked. Mikey shook his head. "No. There's some special report thingy."

The brothers approached the couch, watching the T.V. "Turn it up, Mikey." Raph said. The younger turtle complied.

A dark haired male reporter was on screen with a solemn expression. "Earlier today, police received an anonymous tip about a disturbing smell in an alleyway just off of South Doyle. The smell had emanated from eight dead. Police believe that seven of the men were from a local gang and had initiated a fight with five other men from a rival gang. The deceased were inflicted with slashes along the throat from a blade and heavy bruising. It is believed that one of the rival gang members had turned on one from their own gang and killed him with the same blade. The chief of police has reported that this is just gang violence gone bad. He advises citizens to remain indoors during the night and keep all doors and windows locked." The reporter continued, rambling off about safety. Mikey turned the volume on the T.V. down and glanced at his brothers. Raph shook his head in disappointment. "Gangs. Murders. These streets need some serious cleanin' up. I knew that even wid' t'Shredder and Hun outta' action, that there'd be some bad shit goin' down… Shell… I'm up fer' bustin' some heads t'night. Let's teach 'em idiots t'go around killin' people." Raph growled, spinning a sai in one of his hands. The two younger brothers exchanged worried glances. They turned back to Raph. "Don't get me wrong, Raph, but this isn't our fight. That was some serious gang violence, but it was just gang violence. It's a job more fit for the police." Don intervened calmly. Raph turned to him with an angry glint in his eyes.

"No," Leo interrupted before Raph could start a fight. "Donatello is right. This is not our fight, Raphael. Those people that died were criminals. They were gang members who had probably killed many innocent people. This isn't like with the Shredder or even those few occasions we dealt with Purple Dragons. Innocents are not the victims here. Criminals are the ones who died. They probably just got what was coming to them. I couldn't imagine a better ending than one like this. If any innocents start getting hurt, then we've got reason to handle it, but there are none. Criminals are dying, let them. It's like cleaning a wound. So drop it, Raphael."

His brothers stared at him in shock. Had Leo really said that? The blue masked turtle stood, calm as ever, but with a fierce glint in his eyes. He understood himself then. He was no murderous monster. He had done what was right. They were all criminals. Murderers. Rapists. Monsters. He was right to kill them. He could feel a tug, deep inside of himself. His brothers continued to stare, unaware of his thoughts. Raph should have been angry, but he was more shocked than anything. He only nodded numbly. Leo glanced at his other two brothers. They nodded as well. Leo turned away, heading to his room.

Something still bothered him about that news report, but it wasn't about the killings. No. There was something missing in it all. He entered his room. It was dark. The only glow in the room was from the digital clock on his nightstand next to a neatly made futon. Five in the afternoon. Night would be falling soon. He approached the sword rack mounted to the wall. Several spare katanas rested on the rack. Each held a different hamon than the other. The hamon was the curved or straight line along the blade that determined what type of cut the blade could deal to a target. He lifted one from the rack and unsheathed it with a hiss as the blade left the scabbard. The blade was smooth. Flawless. The hamon looked like a line of flames that danced along the length of the blade, separating the back of the katana from the edge of it. He ran a finger down the smooth length of steel, wincing slightly as a thin line of blood welled from touching the blade. He nodded. This would be his katana's replacement, for now. He sheathed it on his shell and glanced at the clock. Not five minutes had passed. He was growing restless. He wanted to be outside. He needed to start looking for his katana. He froze. It suddenly clicked together. The reporter hadn't said anything about a weapon being found at the crime scene.

Surely a katana would be something to report. Leo frowned. He knew he had left it in the man's skull. He had no doubt about it. He cursed under his breath. He also remembered that he had left three living witnesses. One of them must have taken it. A growl rumbled in his throat. Some criminal had touched his katana and had it now. His most prized possession was in the hands of a human who probably didn't even know how to use it. Leo glanced at the clock. He would search tonight. He would find it.

-.-.-.-.-.-

His breaths came in ragged gasps as he dragged himself through sludge. He had not eaten in a long time and Leo had never returned. Naito was worried by that. Leo should have been back by now. The one thing that kept Naito moving was his worry. How could he have been so foolish to keep the young turtle by his side? Naito growled under his breath and reached out with his clawed hand. His claws dug into the muck and he pulled himself forward. What if Leo was hurt? What if Leo was dead? Naito snarled at the thought and he moved his arm faster, dragging his body violently through the disgusting sludge. The muck coated his body and filled his nose with a horrid stench. Suddenly pain surged through his body from his useless left arm. He bit his tongue and tasted blood. Naito released a ragged breath and shuddered as aftershocks of pain surged through him. Warmness filled his useless arm. He froze.

Naito turned to regard his limb. His un-clawed hand twitched. Naito forced his body into a sitting position. Another surge of pain flashed through him. He clenched his jaw through the pain and kept his eyes fastened on his left arm. Something was surprisingly… right. He could feel the limb. Naito stared at it. His hand tightened into a fist and his eyes widened in shock. How was this possible? He hadn't been able to move his hand for years, yet now his entire arm was moving. Elbow bending, fingers closing, shoulder rotating… he reveled in the simple movements. A fierce glint entered his one good eye.

There was a plaintive squeak behind him. Naito's right arm whipped out swiftly. His claws tore through a small furry body. He brought the rat into view. It was dead. He had killed it. He licked his lips. When was the last time he had eaten? Naito couldn't quite remember. He lifted the rat to his mouth and tore into it with powerful jaws. He ripped flesh from bone, relishing the taste of something fresh and bloody. Meat. Why had Leo never brought him something like this? He had not had fresh meat in so long. He hastily greedily devoured the rat, crushing tiny bones and savoring warm and bloody flesh. He licked the blood from his claws when he finished. His milky white eye glowed with energy. He had enjoyed the meal. Now it was time to continue his search.

Naito flexed his left arm. It was thin in comparison to his right arm. He would fix that. Naito lowered himself onto his stomach and, with renewed vigor, he dragged his body forward, using two arms now.

-.-.-.-.-.-

Leo sat vigil on a rooftop, waiting. The moon was behind clouds, it was a lightless night. He did not have to worry about being outlined. He had looked in on the three humans that he had left alive the previous night. They were members of some small street gang and that was all he knew of them. The gang, a group of maybe twenty individuals, was an unorganized rabble. He gazed down on their hideout. His cold gray eyes were calculating. They hid in a miserable little warehouse that had been abandoned for awhile now. His eyes scanned over the warehouse. He didn't know how many were in there, but he wanted his katana back. Leo's eyes narrowed. Movement. A young male in a gray sweater was walking towards one of the entrances. Leo hadn't seen him before. He knew that this human would not be making it into the warehouse.

He dropped to the ground—behind the young male—landing in a crouch and absorbing the shock with his ankles. The human turned around and Leo struck the side of his neck in a chop with his left hand. The male's eyes rolled back and he tumbled to the ground unconscious. Sure, he was a killer now, but he had principles. He wouldn't kill anyone whose guilt he didn't know. Leo dragged the man's body into the shadows of the warehouse's exterior. He then silently entered through a slightly ajar door.

He slunk low to the ground, almost in a crawl, but not quite. The warehouse was empty, save for a few beat up cars, a stack of a dozen crates and seven humans sitting around one crate talking in hushed tones. On the crate they sat around was his beloved katana, bloodstained and alone. His eyes narrowed. He spotted a female with bright green hair that was spiked up into a mohawk. Leo's eyes narrowed. He had heard about her. She was the leader of this ragtag group. She had killed enough people to ensure they were afraid of her. Leo would not regret killing her, especially not after keeping his precious katana from him.

Leo stood. Seven humans were not a threat to him. He walked forward, unsheathing his katanas from his shell. He wouldn't kill all of them. He would kill her, definitely. Leo continued walking; slowly coming into the light that was a few floodlights. He rushed forward before any of the humans could turn to see him. He hurled black objects from his left hand. They struck the ground and clouds of smoke erupted immediately. Leo hurled shuriken at the flood lights, there was a sound of shattering glass and darkness claimed the light, swallowing it whole. The humans were screaming and running now. Leo didn't mind that. He stood by the crate. He sheathed both katanas on his shell and reached for the one he had been missing. His hand wrapped around the hilt and a feeling of relief filled his body. Another hand wrapped around his. It was feminine, but calloused. There was a surprised gasp and Leo's free hand whipped out and grabbed the woman by the throat. He slammed her to the ground and she went limp in his grip. The other humans were running, the sounds of doors opening echoed in the warehouse.

Leo's eyes began to adjust to the darkness and the smoke cleared. He could make out the woman's mohawk hair and her slim frame now. His grip tightened on the katana. Could he really kill her? Sure, he had killed eight men before. This should've been child's play for him, but he hadn't quite been himself when he made those kills. Henceforth, how could he kill this woman now? She stirred, coming to her senses. She screamed and clawed the hand that held her throat. Leo panicked and his katana swung down, impacting with a wet crunch as it struck her skull. Bloody splattered on his snout messily. Bits of brain were stuck to his emerald green skin. He shuddered, feeling the warmth leave her skin and her pulse falter. Her eyes stared listlessly at him. Leo released a shaky breath. A strange tingly feeling filled his body with warmth. He felt the tension ease from his body and he relaxed. A sound escaped his mouth. A bitter-sweet sound. He knew what it was. It scared him, part of him. Another part of him relished it. He closed his eyes and breathed in. He tugged the katana blade free from her skull and more blood came with it.

He knew the feeling then. It was… excitement. Not your average "Mikey" excitement either. No. It was different. It was so much more than that. It was pure sensational pleasure. Extreme pleasure. Never before had he experienced such a thrill. Thrill. Yes, that's what it was. A pleasuring thrill. It was still more. There was more to it. A wave of relief had accompanied his thrill. He had never felt such a strong sense of relief. It was overwhelming. He could feel his stress lift. He loved this feeling. It was spectacular. One would think he would be frozen by fear because of the blood. Hell, he would think that the sight of blood would make him remember the accident and... it did. However, not in the sense that it usually would. No. He didn't feel fear from it. He felt power. Strength. Control.

Leo stood and flicked the blood from his blade. Still, he could see there was a crusty layer of blood, brain, and bone on his katana. No matter, he would fix that later. He wanted to feel the rush again. He wanted to kill again before the night was through.

A/N: Alright, so I'll spill. As the story progresses, we will start seeing how Leo and Naito progress and what happened in the past. I'll address the accident as well. As for Leo's killing spree... we'll see in the next chapter how it ends. Don's stock ventures and that bet he made with Raph? ;) We'll just have to see!