Starscream had not been killing anyone yet - they were terrified enough as it was. Instead, he'd simply been shooting at their feet, making near-misses. Fear was the key. He hovered low to the ground, herding the fools into a flood of panic.

"Sheep, all of you! Nothing more than disgusting sacs of carbon molecules and water, you're unworthy to even walk the same planet as I!" he snarled. The tiny, slightly buzzing voice in the back of his head was wondering what the hell he was even saying.

And then he spotted the stranger.

This one was not afraid, and... rather clearly not human. And that movement, that almost lazy motion which had resulted in such a shower of blood...

He actually stared for a few moments.

"... who the slag are you?" he asked, suddenly, hovering about ten feet away, his engines making a low whine.