Here are alternatives:
- Bargle is just some guy people are encouraged to hate by the theocratic monarchy in charge.
- He is the welsh merlin fighting foreign occupation.
- He may have been the previous land owner before the new guy took over these lands and declared himself Baron.
- Spellcasting in Threshold (blue expert book) is a crime so maybe he killed someone with a magic missile. Self defence doesnt appear to be a viable excuse for spellcasters if someone comes at you in a bar with a knife so Bargle skips town and hides out rather than faces what qualifies as Justice.
The red basic book simply states he is a criminal and Justice involves having his head beat in by Aleena's Mace. I'm going to go with self defence.