Migrant arrives, nothing out of the ordinary. Some time later, I start getting a bunch of cancellation messages related to a wax worker (it might have been when I updated to 40.24?). No idea why. Going through his thoughts screen, I see he's not really part of the fortress...

The Molten Shields are a bandit group, and Doren himself might be randomly generated due his lack of Legends mode history and there being so little left of the dwarven civ. Originally I was just going to let him die from exposure or wait for one of the military to catch up to him (checked via savescumming -- this doesn't cause a loyalty cascade), but after watching him running back and forth between the food stockpile and the wilderness and starving to death I felt rather bad for him. He seems pleasant enough, and there's never anything nasty in his thoughts screen quote.
Once DFHack updates I'll try and repatriate him. Until then, I'll build him a little hut with its own burrow and see if he'll pick up a crossbow. He does appear in the military screen, though he won't do any jobs.
Has anyone else had a misfit migrant like this?