Neutrophils are densely packed with granules, which are basically tiny packages filled with a deadly load. You can imagine these granules as little knives and scissors that are made to cut open and cripple intruders. So if a Neutrophil encounters a bunch of bacteria in one place it will just shower them with granules that rip their outsides apart. The problem with this approach is that it is not super specific, and it hits whoever is unlucky enough to be in the way.
