TM Chapter 37

Death Omen (死兆, Shichō) is the fifty-seventh chapter of the Trigun manga. It is also the thirty-seventh chapter of Trigun Maximum.

Summary
Knives, a man named William, and Elendira walk in a crowded town. William notes that he's walking through the town with an "Atomic Bomb", but rescinds that comment as Knives is far too potent than that. Elendira claims that if Knives decides to go all out right then and there, which excites her.

A flashback depicts Knives confronting William and how he coerces him to join his cause. At the bottom of a Plant, William and Elendira follow Knives to a place where a severely damaged Plant is. They're confronted by a scientist who is immediately immobilized by a single glare from Knives. The scientist believing that Knives and the other two are part of the Eye of Michael reveals that he too is a believer. He states that the Plant is on its last leg and then the Plant dies an agonizing death. Filled with rage by witnessing the Plant's final moments, Knives decapitates the scientist and destroys the surrounding area. Nearly going fully into his Angel Arm mode, Knives manages to stop himself, but William notes that his hair has finally started to turn black. William claims that if he continues to use the power of the Angel Arm that his hair will turn completely black and he'll perish. Knives rebukes William for withholding such information from him, but is reassured by him that he'll stay by his side regardless of his condition. Out of spite, Knives asks Elendira if Vash's hair has turned black as well and she confirms it. In a fit of rage, Knives kills William and somewhere, Vash sense Knives' presence.