sentences:  This later episode also revealed that he was part of Bester's elite "Black Omega" squadron, and had deserted after receiving orders to fire upon defenseless mundanes (non-telepaths).The "Psi Corps Trilogy" books by Gregory Keyes expand on this apparent crisis of conscience a little.Byron and his ship appear to have crashed or been lost around Venus, but this turns out to be a ruse to effect his desertion without raising suspicions.