Darkness. That's all she could perceive for a few moments, painfully long moments. It happened so many times and yet she still hasn't gotten used to it. Do people feel like this when they die?
One more moment that felt like eternity and she appeared in a circle in the summoning room, wearing her classic attire with top head.. Words can't express how much she detested summoning, those unsettling moments of uncertainty . Normally, she would have gone to her room and taken a shower, but that wasn't the case today. A tall, black haired man in a ceremonial suit approached her, he was accompanied by two fierce looking officers.
"Caitlyn, the Sheriff of Piltover, you are under arrest." Caitlyn's pupils has widened in disbelief. Under arrest?
"What are you trying to arrest me for?" Man looked at her with disgust in his eyes.
"As if you didn't know. Well, come see for yourself!" One of the officers grabbed her shoulder, another tried to take the rifle still resting on her back away. Unsuccessfully. They walked the long way to the room with Jinx, the Loose Cannon plaquete on it. The lock looked unimpaired, however, the door was unlocked.
Before the door proceeded to open, she knew something was wrong. Terribly wrong. She immediately knew that the sight in the room won't be pretty. With a deep breath, she swung the door open. Strong scent hit her like a truck. The immutable scent of murder.
"Now try to deny it, miss Caitlyn." Man pointed at something strangely white lying on a red carpet.
Body. Lifeless corpse. Lifeless corpse with blue braids. Caitlyn has sighed again as she kneeled and leaned over Jinx, or what was left of her. Sheriff's arch enemy died with a crazy smile across her face. Even two bullets, one pierced her heart and the another shattered abdomeninal parts, most probably liver, couldn't wipe it off. Wait, no, the first one was to abdomen, the second one was shot much later, only to ensure death.
The culprit surely took their time to make the queen of chaos suffer. The killer must have hated her, or make it look like they did. Precise work. Sheriff started to look for clues in the room, since there was nothing else she could find on the body. No signs of struggle, only letter C written by Jinx on the floor next to her body. Jinx'es left pinkie covered in blood. Room was very messy, the walls were covered in silly pink pictures, but that wasn't caused by the murder- Jinx surely didn't look like someone who would keep her room clean.
There were two bullet holes in magically enforced window. It took an extremely strong weapon to get through one of those windows. Such as the one that was resting on Caitlyn's back. She looked through the window, the closest building was still very far away. The Institute of War was quite an isolated place. Too far for an ordinary person to hit. Not for the best sharpshooter in all Valoran, of course.
"Don't alter the evidence." Caitlyn nodded, she knew how to examine the crime scene. And how could she mess with the evidence, having two officers watching her every step?
"Did you retrieve the bullets?" She asked in a cold way.
"Yes." Man, the main investigator, has showed her a plastic bag with two bullets in. Her bullets in. Caitlyn didn't need a ballistic report to know that these bullets were shot from her gun. Investigator was right, all the evidence was pointing at her. She started rubbing her chin, as she always did when she was thinking.
"I know how it looks like, but I did not commit this crime."
"Say that to the Tribunal. Officers, take her!"
"Wait!"
"What?" She came closer and gave the head investigator a sharp look.
"Let me investigate." Caitlyn said in all seriousness.
"What a fool could think that we would let the main suspect investigate?"
"I am still the Sheriff of Piltover, I demand my right to investigate."
"You still haven't been stripped of your silver star yet, but this is not Piltover. This is the ground of League!"
"That may be correct, but you are forgetting that I still wield diplomatic immunity as a high officer of Piltover's forces." Detective shrieked his teeth, then he grinned. It wasn't a nice grin.
"24 hours, that's all your so-called "diplomatic immunity" can give you. Then you are mine, Caitlyn, the ex-Sheriff of Piltover."
"Do I need to tell you not to run or leave the league's ground?" Asked the investigator with a lingering smirk on his face, as he was leaving the room, she just shood her head in response.

Who wanted her gone? There were many people, mostly criminals she put behind the bars, but none of them were capable of doing this. Who would frame her for a murder she didn't commit? Who would be even able to do that? Shoot Jinx, Piltover's nightmare, with her own rifle in such a matter nobody else, besides Caitlyn, could pull off? Think Cait, think...
While everyone else would panic in this situation, she just stood there calmly and a small smirk appeared on her face. She didn't know anything about the real culprit, but she will find out eventually. Someone has finally set her up a challenge she was longing for since the disappearence of the infamous C, the only criminal she was never able to catch. C? Jinx is left-handed, why would she use her right pinkie to write? Pieces of puzzles started to stick together, someone has used Jinx dead hand to write C, which everyone would consider as evidence convicing Caitlyn.
But now she knew her old rival was back. And didn't keep himself interested in stealing, he has become a murderer instead. It was odd, murder wasn't his modus operandi and he's always left a business card. Could it be an imposter? But how did he enter the room? And how did he get her gun?
No, he couldn't, she didn't leave sight of her rifle, she never did. Replica. Someone must've observed her league matches and created an exact replica of her trusty rifle. That means someone who is technically capable. Which narrows the list of possible subjects...to pretty much everyone in Piltover. However, most Piltoverians didn't have access to the Institute of War, hence they couldn't enter the room. Only the champions, summoners and officers of the League could reach the room. Which means someone from her fellow champions must've been the culprit.