Most, but not all, non-boss nameds have one or more place holders. If it always spawns in the same spot, then it should be another spawn at that point, but may roam, whether the named does or not. Just mentioning it, 'cause if you've been waiting 3 days without killing stuff, you may be missing out on killing it's PH(ers) which often have short respawn times.
I know it's not alot of help, just making sure you're not missing out. I've never really "caomped" him, just killed him whenever running through there and he's up, and even then only rarely.
Yther Ore.