New location is correct and he is normally the roaming mob but I am currently looking at him in the static traitorous worker's spot directly next to Edward Coldbiter. So obviously he can spawn in either of those two positions. Now to figure out how to split the two named since they are both up....
ph is a traitorous XXX at -2094.78, -1418.42, -432.91 as of Mar 10th patch if you will notice my post on Coldbiter, the two names are spawning side by side. Coldbiter is static mob whereas Coldheart does roam.