User blog comment:WarpSpawn/First Article/@comment-161.38.221.191-20120110140157

Also while I think that the World Eaters would certainly slaughter all of the Librarians in their midst, I doubt that they would hunt a survivor as you put it. That just feels to organized for them, not to mention that hunting down an individual would distract from killing in Khorne's name. Mind you I do believe they would still attempt to kill this character if encountered. Also, being a Librarian he would have been unlikely to pledge himself to Khorne. Instead he could have pledged himself to Chaos Undivided. Another possibility is that being a new Marine he and the rest of his Legion may have been unaware of his Psychic powers. Finally I think if he were to escape, and assuming he is still a follower of Chaos he would likely join or start a new Warband. I hope that this helps.