So we're going with The Creeps or Not the Killers, then? Is that what you're saying?
I think I am thinking what you're thinking, but there's potentially a second suspect and I'm not sure how to go about figuring out whether or not he is who he could be or not.
I mean, let's cut the crap. There's movieverse Steve Rogers and there's comicsverse Steve Rogers here. But is comicsverse Steve Rogers the recent one? Is he Stevil? Tell me I don't have to explain that storyline to you because it's damn clever but it does look like a clusterfuck of epic proportions on the surface. Really, the worst part of it is the damn turtleneck.
Some recent disappearances complicate the theory a bit, unless you consider running out of victims or wanting to throw people off the scent. I've certainly seen that before.