Fives doesn't even rush, he just crouches smoothly down and reaches unerringly for one of the largest, sharpest shards of glass in the wreckage. He picks it up with a kind of automatic care that's ridiculous, given what he means to do with it, but doesn't so much as nick his fingers as he finds a good grip, turns it deftly, then drives it without hesitation for his jugular. His aim is true and he knows exactly how much force such a blow requires, he should bleed out in seconds from the wound.