Bill used to have a family.
And now we know what happened to them.
He killed them.
Bill fans: Bill probably had a family and something happened to him and that’s why he’s so evil and can be redeemed
NOPE! BILL KILLED HIS FAMILY AND HIS WORLD
JUST BECAUSE HE DIDNT LIKE IT, HE IS NOT REDEEMABLE AND NOW HES BURNING IN HELL FOR IT
May's Gravity Falls Blog 