Impossible. Lucan Valerius isn't a thief, and Thiefs are always random NPCs.
OP is a kid that lies
Pelinal W. thinks models and settings cost money
Quote: OP is a kid that lies
Pelinal W. thinks models and settings cost money
Please don't reply to a thread from 2014. The last post from Pelinal W. was from 2015...
And yes, of course models and settings cost time and money if you make them from scratch, you'd need people to work on those but it wouldn't take much effort if you just reuse what you already have.
If Lucan is a thief, or a member of the Guild, then you'd see him robbing a house or even hanging around in the Ragged flagon. So that's impossible.
It could just be a coincidence, no game is free of glitches. But calling someone a liar without evidence is unnecessary.