User blog comment:Legionaire22/Possibly NCF idea/@comment-2031854-20130103204117

I don't think that he would exactly "turn to a Space Marine Chapter." It's more like they'd be doing recruiting, and if he's strong enough for normal people to feel, than the marines would probably take him on willingly because of his abilities, and that would probably negate everything that led up to him joining Chaos. Plus, I don't think Pariahs can be corrupted, and I'm not sure the Chaos Gods would even know he exists. Apparently warp beings don't sense Pariahs by their absence, not unless they're close enough to feel, and only if they're not doing anything to suppress their disruption.

-Inquisitor Ehrenstein