The running theory is that the killer is Ivan. Keep these guesses coming! I love seeing how you guys think

The fighting between Allen and Alfred was getting worse. It never happened unless they were alone together, but it made it hard for Matthew to be around them. He stopped hanging around Alfred all the time and started seeking comfort in Francis and Arthur.
They were much more understanding of Matthew, and didn't mind him healing at his own pace. They almost felt line parents to him, sturdy and composed when he was not.
After a few weeks, Matthew had been keeping his attendance up. He had almost gone to every single class for an entire week straight when Allen suddenly got up and walked out of a lecture. Matthew stood, ready to follow him, but Alfred caught his arm.
"Just let him go." He muttered.
"Alfred," Matthew pulled his arm away, "I'm going." He rushed out of the class just in time to see Allen disappear into the bathroom down the hallway. He followed, going as fast as his legs could carry him.
He found Allen in the third stall from the sinks, door closed.
"Hey, you alright?" Matthew asked.
"I'm fine."
"Do you need a hug or somethin?"
There was a small pause in which Allen stepped off the toilet and opened the stall, throwing himself into Matthew's arms.
"Yes." He sobbed.
Matthew rubbed his back, soothing him.
"You'll be alright." He assured. "What's eating you?"
"Everything."
"Let's go sit on the sinks." Matthew lead Allen across the bathroom and helped him sit on the counter. "Talk to me."
"I dunno...it's just a mess. Mattie's accused of murder and my roommate hates me."
"What are you two even fighting aboot?"
"Oh..." Allen looked down at his lap. "I may have...I kinda...developed a crush on somebody who he cares about..."
"Who the hell does Alfred care ab-"
"What?"
"Oh..."
"I'm sorry."
"So it is me?"
"Yeah. Sorry."
"It's okay...I guess..."
"I never planned to act on it! I get crushes like this all the time. It's just that when I told him he started going off on me."
"Alfred is just...like that. He throws fits when he doesn't get his own way." Matthew explained. "Trust me. I've been through this enough times growing up."
"If he's like that...what does that make me?" Allen wondered. "Which one of us is the bad guy?"
"Neither of you. You're both good people."
"I hope you're right." Allen sighed.
"Of course I'm right. I'm always right." Matthew boasted.
"Do you...do you think Matt did it?"
Matthew shook his head. "No. Not really."
"He's being framed. I just know it. If Matt ever killed somebody he wouldn't be sneaky about it. And he would kill more people to hide it. He's not clever and he's temperamental."
"That's a mean thing to say about your brother."
"I said he wasn't clever. I didn't say he was stupid." Allen rested his head on Matthew's shoulder. "He's really scared about you, you know?"
"Who? Matt? He's not scared at all."
"No. I mean Alfred. He's worried that you're secluding yourself."
"I've been hanging out with Francis and Arthur more. It's okay. I'll be fine."
He certainly hoped it was true.

Nobody suspects Matthew and Like???? I never said for sure that he never snuck out of bed that night and got in a fight with Gil....but you can think outside the box.
Also...Nigel...has no alibi? Could it be him?