Avengers: What If...?

(New York, 2012... The Chitauri were defeated with difficulty... after that, everyone went to him... at this time, in Stark's tower, Loki, beaten by the Hulk, barely made it to the stairs... suddenly the elevator doors opened, Romlov came out, looked around and made sure that he and Loki were alone, he approached Loki)
Romlov: (pulled out a syringe with something poisonous green and grabbed Loki by the hair) Well...that was something... (he said indifferently)...if it weren't for the Avengers, you would have been useful to Hydra...
Loki:...wh...what do you want...? (he croaked weakly)
Romlov: remove... (he sharply stuck the syringe into Loki's neck and injected the contents)
Loki: (tries to move away, but due to weakness it is almost impossible)
Romlov: (When everything was done, he pulled out the syringe and, once again making sure that no one had seen him, left...)
(A few hours later, the Avengers arrived to arrest Loki and send him and Thor to Asgard)
Clint: (he walked up to Loki, who was lying facing the stairs, and poked him with his bow, checking if he was alive or just pretending...there was no movement...not even breathing...he suddenly turned gray)
Tony: so what's going on?
Clint: (just in case, he checked Loki's pulse to make sure he wasn't imagining it) Tony... (he began quietly)...he's dead...