Assassination
The blue humanoid thrust his bladed hand down with the practiced ease of someone who had done this, taking lives, a thousand plus times over. His movements were wordless, soundless, efficient. The very texture of his skin was altered so that even the faintest breeze would not draw a noise. His feet had glided across the metal floor like he was sliding, preventing any footsteps from echoing out.
He was a trained assassin called Blueshift, quite competent in his job as he could easily shift into objects that were blue, though he only mimicked physical dimensions, not any special properties.
But he was not the only trained assassin in the confines of that jet.
The humanoid's face, like its body, was similarly nearly featureless, sporting indents for the eyes and the mouth, making it hard to read any expression on it, but even then, his surprise was palpable, evidenced by the faint impressions of his 'eyes' growing slightly wider.