Elliot only stops at the doorway when the building explodes, which at least saved him from racing out into the open right away and possibly getting hit by another hail of bullets.

He tries to figure out the source of the explosion. He really doubted the UE was behind that particular bit of destruction since that building seemed destroyed enough before then. Who was capable of...?

And then he spots a familiar form off in the distance. Something about the way he looked...it reminded him of that strange occurrence in Sablier. He looked like Shorty, but he certainly didn't seem like Shorty. Despite his concern for Break, he calls out.

"Oz Vessalius?!"