Eren was mortified as he looked on at Armin's corpse. Tears swelled in his eyes, his lungs felt like they collapsed, and he felt a wave of sorrow drowned him.
"Armin!" He yelled out, tears now poured out. He pushed past the crowd now running away to get to Armin, hoping he had maybe lived. Eren soon found his corpse laying as it had. Armin's face looked almost just as shocked as Eren had. Eren shifted him to hold him in his arms. His hands lifted his lifeless head.
"Armin! Armin please! No you can't leave me! Yo-you promised me! You promised me you would always be there for me! You ca-can't leave me! Not now!" Eren weeped into his shoulder. Eren stayed like that for awhile. Even as a teacher had approached Eren.
"Eren, what happened here?" The panicked voice of his teacher called out, he kneeled to face the omega on the ground clutching his dead friend.
"Eren! What happened here!"
"Sir, w-we don't know except for that Armin f-fell from the roof. I think he jumped sir!" Connie stuttered. Eren looked up, from Armin's chest, and through his tear filled eyes he saw the face of Mr, Smith. Eren tried to say something, but couldn't find the words too do so. Mr,Smith pulled out his phone to call the police.
Connie came up behind Eren to try and comfort him.
"It'll be okay Eren. I promise." Connie was trying his best not to burst into tears. Petra had walked by the locker room and saw the scene.
"Whats going on Sensei? Did someone get hurt!?" Petra ran over, mortified as soon as she saw it.
"We think he may jumped off the roof . Though nothing has been confirmed yet. Petra, go and comfort Eren, I've already called the police and ambulance." Mr, smith explained. The female beta didn't hesitate to run to Eren.

....
Eren cried into Petra's chest as the ambulance took Armin away.
"Shh. Just let it out Eren. Just let it out." Petra whispered calmly into Eren's ears as she rubbed his chest. Eren's tears had soaked her once clean white uniform. Rico would scold her for getting her uniform dirty later. But all that mattered to her was comforting the distraught omega. Eren lifted his head.
"He-he pr-promised me-me that he w-would always there for m-me!" Eren cried even more.  The headmaster merely glanced at the weeping omega. He looked at the police officers.
"Put the school on lockdown, we need to figure out what happened before anyone involved can leave."
....
Levi felt euphoric as Eren had buried himself in his chest. The two, along with the entire school were on lockdown, and under their desks. Levi hid his happiness under a mask of grief as he rubbed Eren's back. He released comforting pheromones in hopes it would comfort his omega. It didn't. Eren wasn't even crying as much. But he still looked overwhelmed with grief. Levi sniffed Eren's scent only to find it smelt different. Like someone had been holding him. Probably Petra, I'll deal with her later.For now, Eren needs my comfort.
.....
A/N: Levi doesn't like other people touching his omega. Not even Petra.