Jefferson is and (barring any disastrous falling out between Mr Stan
and Marvel) likely to remain a mysterious figure. He appears to possess a
rare ability, one that can't be easily learned by other magic-users
(Regina can operate the hat, but doesn't seem comfortable with it).
At one point he used this power in a mercenary fashion, taking
commissions from Rumplestiltskin to collect magic items. This employment
somehow led to his wife's death. After Regina leaves his house, the
camera lingers on what appears to be a memorial.
