A/N: Guess who's back? Jett Stetson. And he's back with a vengeance.

Disclaimer: I am in no way affiliated with the making of BTR.

Jett had pretended not to care. He really had. So what if his best friend had downright abandoned him? He had other friends. Carlos had new friends, including Kendall Knight. Carlos probably thought of him as his 'Knight in shining armour'. How lame. Jett had managed to go months without getting mad. Granted, those were the months where he'd been forced into therapy every Saturday. That had been fine at first; just talking about why Carlos had left – because Jett had spilled Kendall's true feelings and didn't take anyone's resulting feelings into consideration, causing Carlos to lose all respect for him.

Yeah, it was all fine for a while, until the therapist started looking for underlying causes for Jett's outburst. Whatever Jett had been expecting, it definitely wasn't jealousy! There was no way in hell that he could have a crush on Carlos. Jett Stetson was not gay! Jett had stopped going to therapy after that. That therapist was wrong. She couldn't be more wrong. What could Jett possibly like about the idiotic, naïve, sweet, adorable, brown-eyed Latino – ah crap. The snapping point was when he started to hate that therapist for making him realise he had a crush on his ex-best friend. She'd have to pay…

The next few months were spent trying to think of an untraceable way to kill his therapist. He started by fixing the head-student election. He threatened half his year that if he didn't win, he'd find out their deepest, darkest secrets and tell everyone. It was pretty surprising that that actually worked. Almost made him want to know what secrets these people were hiding; but Jett had more important things to worry about. The head boy (or girl) every year was entrusted with a master key to the school. Apparently that gave them some sort of responsibility. Jett couldn't care less about the responsibility thing – he just wanted a way into the chemistry prep-room whenever he wanted. It was late February before anything happened, since he'd been delayed studying for the Mock exams.

Before taking anything from the prep-room, Jett decided to snoop around his therapist's house to see if there was anything that could allow him to kill her without him being there when she died. He found her address easily enough in the phone book. She lived in the middle of nowhere but it wasn't hard to find. Jett started laughing when he drove up and saw her drawing water out of a well. She had her back to him so she didn't see him but he knew it was her. He started wondering what kind of stuff he could dissolve in the water that could kill her but he wasn't great at science so he had to go home and look it up.

Arsenic poisoning? He hadn't even heard of arsenic before but apparently it was a thing. More importantly, it was a thing that could be found in school. He pulled on a coat, a beanie and some gloves before hopping into his car and heading to the school. His knowledge on covering up crimes was fairly limited but he knew enough not to leave fingerprints. He bit his lip as he inserted the key into the lock, wondering if there was any chance the use of a specific key could be traced. Deciding that was probably a stupid thought, he opened the door and set about finding some arsenic.

He found the jar on the top shelf of a cupboard inside the prep-room. He was glad these things were arranged alphabetically so he could just grab it and get out of there. He shoved it into his coat pocket and returned to his car. Once he got there, he opened the jar and checked how much arsenic was inside. It was practically full. Jett smiled before re-pocketing it and reversing out of the car-park and heading towards his destination.

Jett sat in his car outside his therapist's house waiting for all the lights to be turned off so he could poison the well without anybody seeing him. Luckily, they all went to bed pretty early so Jett didn't have to wait long. He stepped out of the car, carrying the jar of arsenic, and walked quickly but quietly towards the well. He paused while opening the jar, realising he had absolutely no idea how much he'd have to put in. Shrugging, he emptied about three quarters of the jar into the well. Re-capping the jar, he hurried back to his car and drove off. He replaced the jar on its shelf at school before re-locking the doors and going home to enjoy the rest of his weekend.

Jett walked to school on Friday morning. It was a beautiful day and he planned to make the most of it. He met up with his friend, Lucy, on the way and she wasted no time in spilling the latest gossip.

"Did you hear about Logan and his mom?" she asked.

"What about them?" Jett asked, in confusion.

"His mom's in a critical condition in hospital and he's been vomiting since yesterday afternoon. Apparently their water was contaminated with something." Lucy explained.

"That's terrible!" he exclaimed, his skin suddenly getting paler, as he realised that his therapist was Logan's mother, Joanna Mitchell.

"Are you okay?" Lucy asked, "You're really pale. Your water wasn't contaminated too, was it?"

"What? No! I'm fine. It's just, his mother's my therapist." Jett croaked.

"Oh. I didn't know you were in therapy." Lucy commented.

"Well, I am. Or I was." Jett said as they entered the school and went their separate ways.

Nobody at school looked happy. Kendall, James and Carlos must've told everyone what happened. Nobody had expected anything like this to happen to anyone. Jett put on his best sympathetic face – after all, he was an amazing actor – even though he was quite enjoying seeing everyone so upset. He didn't concentrate on Carlos though. Seeing Carlos upset would hurt too much. Seeing Kendall upset was great though. Until he started comforting Carlos and they were kissing in front of him. This was the first time Jett had seen them doing anything as a couple and he hated it. Kendall didn't deserve Carlos. Jett had to separate them – but then Carlos would just run to James or Logan (if he got better). Jett wanted Carlos to run back to him. That meant that all three of them would have to die. Jett could hardly contain his excitement as he planned how to kill them; he still managed to stay looking upset though. He couldn't have Carlos if he was in jail, now could he?

A/N: Well, it's probably obvious that I have no idea how arsenic poisoning works. I tried looking it up but there is very little information online and I really didn't want to try and find a book about it. I don't even know why I picked such a complicated thing that I know nothing about. Oh, just to clarify – the head-girl in my school does not get a key to the school, as far as I'm aware anyway. We're not really friends so I've never asked her. This story will be pretty short but I really hope you like it! Please review.